{"title":"Tubes","description":"","products":[{"product_id":"mtc-bio-microcentrifuge-tubes","title":"SureSeal S™ Sterile Microcentrifuge Tubes","description":"\u003cdiv style=\"max-width: 1400px; margin: 0 auto; font-family: 'Open Sans', sans-serif; font-weight: 300; color: #333; background: #fff;\"\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 40px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%); text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/BTS-SureSealS-assorted.jpg\" alt=\"SureSeal S sterile microcentrifuge tubes in assorted colors\" style=\"width: 100%; max-width: 440px; height: auto; object-fit: contain; border-radius: 8px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%);\"\u003e\n\u003ch3 style=\"font-size: 1.15rem; font-weight: 400; margin: 0 0 20px 0;\"\u003e\u003cstrong\u003eThe Everyday Microtube, Engineered Better\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003eSureSeal S™ tubes handle the work your lab does every day\u003c\/strong\u003e: enzyme digests, DNA isolation and purification, centrifugation, incubation, and routine sample and reagent storage. They are molded under clean room conditions from MTC Bio's \u003cstrong\u003eBioClear™ co-polymer\u003c\/strong\u003e, an advanced polypropylene that maximizes clarity for easy pellet visualization without sacrificing strength.\u003c\/p\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003eSterile comes standard\u003c\/strong\u003e, by electron beam irradiation, and every tube is certified RNase-, DNase-, and pyrogen-free. You get molecular-grade confidence in every bag, at a price built for daily use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 16px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003e28,000 × g\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eTested centrifugal strength\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003e−90 to +121 °C\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eUsable temperature range\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003eSterile\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eE-beam sterilized, standard\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003e10 Stop-Pops™\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eCap locks included in every bag\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 40px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 400px; min-width: min(280px, 100%); text-align: center; order: 1;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/BTS-SureSealS-tube-diagram.jpg\" alt=\"SureSeal S tube diagram\" style=\"width: 100%; max-width: 420px; height: auto; object-fit: contain; border-radius: 8px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%); order: 2;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eA Better Cap, a Better Seal\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003eThe full-size cap has a frosted marking surface\u003c\/strong\u003e, giving you room for clear, legible sample IDs.\u003c\/p\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003eA unique ring-and-groove closure creates a liquid-tight seal\u003c\/strong\u003e while reducing the force needed to open and close the cap. That means less thumb strain across hundreds of tubes a day, and more secure samples in the centrifuge, heat block, and freezer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eBoil-Proof Performance\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003eWatch the SureSeal S™ seal hold in boiling water, with Stop-Pops™ cap locks keeping lids closed under heat and pressure.\u003c\/p\u003e\n\u003cvideo controls muted playsinline preload=\"metadata\" style=\"display: block; width: 100%; max-width: 860px; margin: 0 auto; border-radius: 8px; background: #000;\"\u003e\u003csource src=\"https:\/\/mtcbiotech.com\/wp-content\/uploads\/2019\/05\/Boilproof-Video.mp4\" type=\"video\/mp4\"\u003e\u003c\/video\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eBuilt for Busy Benches\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 28px 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eSelf-Standing Bag\u003c\/strong\u003e\u003cbr\u003eA gusseted bottom lets the bag stand open on the bench for fast, one-handed dispensing.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eStop-Pops™ Included\u003c\/strong\u003e\u003cbr\u003e10 locking clips per bag keep caps closed during boiling and high-temperature incubation.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eColor-Coded Options\u003c\/strong\u003e\u003cbr\u003eBlue, red, green, orange, purple, yellow, opaque black, or assorted, for instant sample sorting.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eLight-Blocking Black\u003c\/strong\u003e\u003cbr\u003eC2000-OB protects light-sensitive reagents and samples.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eThree Volumes\u003c\/strong\u003e\u003cbr\u003e0.5 mL, 1.5 mL, and 2.0 mL formats cover nearly every microtube workflow.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eBagged-by-50 Options\u003c\/strong\u003e\u003cbr\u003eC2000-50 and C2000-50AST ship in bags of 50 to limit exposure of unused tubes.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eChoose Your Format\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003e1.5 mL Standard\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C2000 (clear), C2000-B\/R\/G\/O\/P\/Y\/OB (colors), C2000-AST (assorted)\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Everyday digests, preps, and storage\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003e1.5 mL in Bags of 50\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C2000-50, C2000-50AST\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Shared labs and low-contamination dispensing\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003e2.0 mL \u0026amp; 0.5 mL\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C2002 (2.0 mL), C2007 \/ C2007-AST (0.5 mL)\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Larger preps or small-volume reactions\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003eLocktop Caps\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C2051 (1.5 mL), C2050 (0.5 mL, 1000\/pk)\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Extra cap security during handling\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003eAccessories\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C2086 Stop-Pop™ clips, C4010 PolyPestle™\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Cap locking and in-tube homogenization\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eSee SureSeal S™ in Action\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 860px; margin: 0 auto; border-radius: 8px;\"\u003e\u003ciframe style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; border-radius: 8px;\" src=\"https:\/\/www.youtube.com\/embed\/VQW2qZkdbPA\" title=\"See SureSeal S™ in Action\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul style=\"margin: 0; padding-left: 20px; columns: 2 260px;\"\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eRestriction enzyme digests\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eDNA and RNA isolation and purification\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003ePCR setup and reagent aliquoting\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eBoiling lysis and heat-block incubation\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eHigh-speed microcentrifugation\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eShort- and long-term sample storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f9f9f9; border: 1px solid #e0e0e0; border-radius: 8px; padding: 24px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eTip for Boiling and Heat Steps\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003eSnap a Stop-Pop™ over each cap before boiling or heating above 90 °C. Pressure buildup can pop standard caps open, and the clips keep your samples, and your heat block, clean.\u003c\/p\u003e\n\u003cp style=\"margin: 18px 0 0 0;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/MTC-Bio-SureSeal-S-Brochure.pdf\" target=\"_blank\" rel=\"noopener\" style=\"display: inline-block; background: #1f6fb2; color: #fff; text-decoration: none; padding: 10px 20px; border-radius: 6px; font-size: 0.95rem; font-weight: 600;\"\u003e📄 Download the SureSeal S™ Brochure (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-top: 1px solid #e0e0e0; margin-top: 40px; padding-top: 20px;\"\u003e\u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\" style=\"width: 100%; padding: 20px 0; font-family: 'Open Sans', sans-serif; font-weight: 300; color: #333;\"\u003e\n\u003ch3 style=\"font-size: 1.1rem; font-weight: 600; margin: 0 0 16px 0;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eAre SureSeal S™ tubes a good alternative to Eppendorf® Safe-Lock tubes?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eFor most routine applications, yes. SureSeal S™ tubes are sterile, rated to 28,000 × g and −90 °C to +121 °C, and include Stop-Pops™ cap locks for boiling steps, at a lower cost per tube. Confirm fit in your specific rotor and rack. Eppendorf® and Safe-Lock® are trademarks of their respective owner; Blue Tiger Scientific is not affiliated.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eWhat g-force can SureSeal S™ tubes handle?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eSureSeal S™ tubes are tested up to 28,000 × g.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eWhat temperature range are SureSeal S™ tubes rated for?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eThey are usable from −90 °C to +121 °C, covering freezer storage, heat blocks, and autoclaving.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eAre SureSeal S™ microcentrifuge tubes sterile?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eYes. They are sterilized by electron beam and certified RNase-, DNase-, and pyrogen-free.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eWhat are Stop-Pops™?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eStop-Pops™ are cap-locking clips that keep caps closed during boiling and high-temperature steps. Ten are included in every bag of most 1.5 and 2.0 mL formats, and they are also sold separately (C2086, 100\/pk).\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eWhat sizes and colors are available?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003e0.5, 1.5, and 2.0 mL. The 1.5 mL tube comes in clear, blue, red, green, orange, purple, yellow, opaque black, and assorted colors.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"MTC Bio","offers":[{"title":"C2000-B | 1.5mL | Blue | Sterile | Self-Standing Bag | Stop-Pops™ | 500\/pk","offer_id":50063497560362,"sku":"BTS-C2000-B","price":22.42,"currency_code":"USD","in_stock":true},{"title":"C2000-R | 1.5mL | Red | Sterile | Self-Standing Bag | Stop-Pops™ | 500\/pk","offer_id":50063647572266,"sku":"BTS-C2000-R","price":22.42,"currency_code":"USD","in_stock":true},{"title":"C2000-G | 1.5mL | Green | Sterile | Self-Standing Bag | Stop-Pops™ | 500\/pk","offer_id":50063647605034,"sku":"BTS-C2000-G","price":22.42,"currency_code":"USD","in_stock":true},{"title":"C2000-O | 1.5mL | Orange | Sterile | Self-Standing Bag | Stop-Pops™ | 500\/pk","offer_id":50063647637802,"sku":"BTS-C2000-O","price":22.42,"currency_code":"USD","in_stock":true},{"title":"C2000-P | 1.5mL | Purple | Sterile | Self-Standing Bag | Stop-Pops™ | 500\/pk","offer_id":50063647670570,"sku":"BTS-C2000-P","price":22.42,"currency_code":"USD","in_stock":true},{"title":"C2000-Y | 1.5mL | Yellow | Sterile | Self-Standing Bag | Stop-Pops™ | 500\/pk","offer_id":50063647703338,"sku":"BTS-C2000-Y","price":22.42,"currency_code":"USD","in_stock":true},{"title":"C2000-OB | 1.5mL | Opaque Black | Sterile | Self-Standing Bag | Stop-Pops™ | 500\/pk","offer_id":50063647736106,"sku":"BTS-C2000-OB","price":22.42,"currency_code":"USD","in_stock":true},{"title":"C2000-50 | 1.5mL | Clear | Sterile | 10 Bags of 50 | 500\/pk","offer_id":50063654748458,"sku":"BTS-C2000-50","price":26.1,"currency_code":"USD","in_stock":true},{"title":"C2051 | 1.5mL | Locktop Cap | 500\/pk","offer_id":50063669920042,"sku":"BTS-C2051","price":24.21,"currency_code":"USD","in_stock":true},{"title":"C2002 | 2.0mL | Clear | Sterile | Self-Standing Bag | Stop-Pops™ | 500\/pk","offer_id":50063654781226,"sku":"BTS-C2002","price":24.57,"currency_code":"USD","in_stock":true},{"title":"C2007 | 0.5mL | Clear | Sterile | Self-Standing Bag | 500\/pk","offer_id":50063654813994,"sku":"BTS-C2007","price":24.57,"currency_code":"USD","in_stock":true},{"title":"C2000-AST | 1.5mL | Assorted Colors | Sterile | Self-Standing Bag | Stop-Pops™ | 500\/pk","offer_id":50063654846762,"sku":"BTS-C2000-AST","price":24.96,"currency_code":"USD","in_stock":true},{"title":"C2007-AST | 0.5mL | Assorted Colors | Sterile | Self-Standing Bag | 500\/pk","offer_id":50063669952810,"sku":"BTS-C2007-AST","price":26.13,"currency_code":"USD","in_stock":true},{"title":"C2000-50AST | 1.5mL | Assorted Colors | Sterile | 10 Single-Color Bags of 50 | 500\/pk","offer_id":50063669985578,"sku":"BTS-C2000-50AST","price":27.41,"currency_code":"USD","in_stock":true},{"title":"C2050 | 0.5mL | Locktop Cap | 1000\/pk","offer_id":50063670018346,"sku":"BTS-C2050","price":46.09,"currency_code":"USD","in_stock":true},{"title":"C2086 | Stop-Pop™ Locking Clips | Breakaway Lifting Tabs | For 1.5mL Tubes | 100\/pk","offer_id":50063711797546,"sku":"BTS-C2086","price":34.46,"currency_code":"USD","in_stock":true},{"title":"C2000 | 1.5mL | Clear | Sterile | Self-Standing Bag | Stop-Pops™ | 500\/pk","offer_id":50257917378858,"sku":"BTS-C2000","price":21.92,"currency_code":"USD","in_stock":true},{"title":"C4010 | PolyPestle™ Double-Sided Pestle | For Cell Strainers \u0026 1.5mL Tubes | Sterile | 50\/pk","offer_id":50257922654506,"sku":"BTS-C4010","price":65.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/2_53a314fe-2534-48b1-9d44-bca63cda29a4.png?v=1743286606"},{"product_id":"mtc-bio-screwseal™-polypropylene-microcentrifuge-tubes","title":"ScrewSeal™ Polypropylene Microcentrifuge Tubes","description":"\u003cdiv style=\"max-width: 1400px; margin: 0 auto; font-family: 'Open Sans', sans-serif; font-weight: 300; color: #333; background: #fff;\"\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 40px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%); text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/BTS-ScrewSeal-family.jpg\" alt=\"ScrewSeal screw cap microtube family\" style=\"width: 100%; max-width: 440px; height: auto; object-fit: contain; border-radius: 8px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%);\"\u003e\n\u003ch3 style=\"font-size: 1.15rem; font-weight: 400; margin: 0 0 20px 0;\"\u003e\u003cstrong\u003eScrew-Cap Security for Samples That Can't Leak\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003eWhen a snap cap isn't enough\u003c\/strong\u003e, whether you're freezing to −90 °C, boiling, autoclaving, or shipping samples across the country, ScrewSeal™ screw-cap microtubes lock your sample in. Every tube comes with an assembled cap and a silicone O-ring that holds a leak-proof seal across the full −90 °C to +121 °C range.\u003c\/p\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003eMolded from ultra-clear polypropylene\u003c\/strong\u003e, ScrewSeal™ tubes let you see pellets and volumes at a glance. They arrive sterile and certified RNase-, DNase-, and pyrogen-free, ready for molecular, clinical, and pharmaceutical work.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 16px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003e22,000 × g*\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eMax centrifugation\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003e−90 to +121 °C\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eLeak-proof O-ring seal range\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003eSterile\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eRNase\/DNase\/pyrogen-free\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003eCaps On\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eAssembled and ready to use\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eWhy Labs Choose ScrewSeal™\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 28px 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eSilicone O-Ring Seal\u003c\/strong\u003e\u003cbr\u003eA positive, leak-proof seal time after time, even through freeze-thaw cycles.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eUltra-Clear Polypropylene\u003c\/strong\u003e\u003cbr\u003eEasy sample and pellet visualization.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eLoop-Cap Option\u003c\/strong\u003e\u003cbr\u003eC3150-SL loop caps are easy to grip with gloves and can be tethered or labeled.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eSelf-Standing 2.0 mL\u003c\/strong\u003e\u003cbr\u003eSkirted bottoms stand upright on the bench, no rack required.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eMolded Graduations\u003c\/strong\u003e\u003cbr\u003e2.0 mL formats have permanent molded graduations that won't rub off.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eIndividually Wrapped\u003c\/strong\u003e\u003cbr\u003eC2231-W wraps each tube for single-use sterility in clinical and field work.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 40px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 400px; min-width: min(280px, 100%); text-align: center; order: 1;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/BTS-ScrewSeal-amber.jpg\" alt=\"ScrewSeal amber light-blocking microtubes\" style=\"width: 100%; max-width: 420px; height: auto; object-fit: contain; border-radius: 8px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%); order: 2;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eLight-Blocking Amber for Sensitive Samples\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003eLight degrades more samples than most labs realize\u003c\/strong\u003e: fluorophores, vitamins, photosensitive drugs, and many reagents. The C2230-AM amber tube and cap block light while keeping the same O-ring seal and self-standing design.\u003c\/p\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003eUse amber for photosensitive compounds, fluorescent probes, and any sample stored outside a dark freezer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eChoose Your Format\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003e1.5 mL Conical\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C3150-S (screw cap), C3150-SL (loop cap)\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Freezer storage, spin-down, and sample transport\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003e2.0 mL Self-Standing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C2230 (clear), C2230-AM (amber)\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Bench-top handling, boiling, and light-sensitive samples\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003e2.0 mL Individually Wrapped\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C2231-W, 500\/cs\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Clinical collection and single-use sterility\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 40px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 400px; min-width: min(280px, 100%); text-align: center; order: 2;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/BTS-ScrewSeal-wrapped.jpg\" alt=\"ScrewSeal individually wrapped tubes\" style=\"width: 100%; max-width: 420px; height: auto; object-fit: contain; border-radius: 8px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%); order: 1;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eNeed More Options?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003eLooking for 0.5 mL formats, printed graduations, or loop caps on a 2.0 mL tube? See our \u003ca href=\"\/products\/mtc-bio-clearseal%E2%84%A2-screw-cap-microcentrifuge-tubes\" style=\"color: #1f6fb2; font-weight: 600;\"\u003eClearSeal™ Screw Cap Microtubes\u003c\/a\u003e, packed in resealable bags of 50.\u003c\/p\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003eFor everyday snap-cap work, the \u003ca href=\"\/products\/mtc-bio-microcentrifuge-tubes\" style=\"color: #1f6fb2; font-weight: 600;\"\u003eSureSeal S™ Sterile Microcentrifuge Tubes\u003c\/a\u003e are the value choice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul style=\"margin: 0; padding-left: 20px; columns: 2 260px;\"\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eLong-term −80 °C sample storage\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eBoiling and heat-block incubation\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eAutoclaving buffers and media aliquots\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eSample transport and shipping\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eClinical and diagnostic specimen storage\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eLight-sensitive reagent storage (amber)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f9f9f9; border: 1px solid #e0e0e0; border-radius: 8px; padding: 24px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eTip for Leak-Free Freezing\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003eTighten caps firmly but don't over-torque. The O-ring does the sealing. Let samples reach room temperature before opening to avoid condensation getting pulled inside.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 0.85rem; color: #777; margin: 20px 0 0 0;\"\u003e*Centrifugation rating refers to liquids with a specific gravity of 1.0, using appropriate rotors, cushions, and adapters.\u003c\/p\u003e\n\u003cdiv style=\"border-top: 1px solid #e0e0e0; margin-top: 40px; padding-top: 20px;\"\u003e\u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\" style=\"width: 100%; padding: 20px 0; font-family: 'Open Sans', sans-serif; font-weight: 300; color: #333;\"\u003e\n\u003ch3 style=\"font-size: 1.1rem; font-weight: 600; margin: 0 0 16px 0;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eAre ScrewSeal™ tubes a good alternative to Sarstedt screw cap micro tubes?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eFor most freezing, boiling, and transport applications, yes. ScrewSeal™ tubes are sterile with assembled silicone O-ring caps, seal from −90 °C to +121 °C, and include amber and individually wrapped options. Confirm fit in your specific racks and rotor. Sarstedt is a trademark of its respective owner; Blue Tiger Scientific is not affiliated.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eWhat temperature range can ScrewSeal™ tubes seal across?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eThe silicone O-ring provides a leak-proof seal from −90 °C to +121 °C.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eHow fast can ScrewSeal™ tubes be centrifuged?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eUp to 22,000 × g for liquids with a specific gravity of 1.0, using appropriate rotors, cushions, and adapters.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eIs there a light-blocking option?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eYes. The C2230-AM is a 2.0 mL self-standing tube with an amber tube and cap for light-sensitive samples.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eAre the caps already on the tubes?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eYes. All ScrewSeal™ tubes come with caps assembled and are sterile, RNase-, DNase-, and pyrogen-free.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eAre individually wrapped tubes available?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eYes. The C2231-W 2.0 mL tube is individually wrapped for single-use sterility, 500 per case.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"MTC Bio","offers":[{"title":"C3150-S | ScrewSeal 1.5mL | 12.8x45mm | Sterile | O-ring | Conical | Non-graduated | Assembled | 100\/bag | 10 bags\/case | 1000 Total","offer_id":50086126977322,"sku":"BTS-C3150-S","price":245.37,"currency_code":"USD","in_stock":true},{"title":"C3150-SL | ScrewSeal 1.5mL | 13x47mm | Loop cap | Sterile | O-ring | Conical | Non-graduated | Assembled | 100\/bag | 10 bags\/case  | 1000 Total","offer_id":50086128910634,"sku":"BTS-C3150-SL","price":271.22,"currency_code":"USD","in_stock":true},{"title":"C2230 | ScrewSeal 2.0mL | 12.8x46mm | Screw cap | O-ring | Graduated | Self-standing | Assembled | 100\/bag | 10 bags\/case | 1000 Total","offer_id":50086128943402,"sku":"BTS-C2230","price":275.2,"currency_code":"USD","in_stock":true},{"title":"C2231-W | ScrewSeal 2.0mL | 12.8x46mm | Screw-cap | O-ring | Graduated | Self-standing | Assembled | Individually wrapped | 500 count total","offer_id":50086128976170,"sku":"BTS-C2231-W","price":229.33,"currency_code":"USD","in_stock":true},{"title":"C2230-AM | ScrewSeal 2.0mL | 12.8x47.4mm | Amber screw cap | O-ring | Graduated | Self-standing | Amber assembled | 100\/bag | 10 bags\/case | 1000 Total","offer_id":50086129008938,"sku":"BTS-C2230-AM","price":272.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/1_9a91080f-22b0-4e95-babf-df48602f289e.png?v=1743864897"},{"product_id":"mtc-bio-clearseal™-screw-cap-microcentrifuge-tubes","title":"ClearSeal™ Screw Cap Microcentrifuge Tubes","description":"\u003cdiv style=\"max-width: 1400px; margin: 0 auto; font-family: 'Open Sans', sans-serif; font-weight: 300; color: #333; background: #fff;\"\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 40px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%); text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/BTS-ClearSeal-group.jpg\" alt=\"ClearSeal screw cap microcentrifuge tube family\" style=\"width: 100%; max-width: 440px; height: auto; object-fit: contain; border-radius: 8px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%);\"\u003e\n\u003ch3 style=\"font-size: 1.15rem; font-weight: 400; margin: 0 0 20px 0;\"\u003e\u003cstrong\u003eThe Clearest View of Your Sample\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003eClearSeal™ screw-cap microtubes are molded from ultra-clear polypropylene\u003c\/strong\u003e for easy visualization of pellets, phases, and volumes. Assembled O-ring screw caps hold a leak-proof seal from −86 °C to +121 °C, so samples stay put in the freezer, the heat block, and the centrifuge.\u003c\/p\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003eEvery tube is sterile and RNase-, DNase-, and pyrogen-free\u003c\/strong\u003e, and packed 50 to a resealable sterile bag. You open only what you need, and the rest stay protected.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 16px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003e22,000 × g*\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eMax centrifugation\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003e−86 to +121 °C\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eLeak-proof seal range\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003eBags of 50\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eResealable, sterile\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003e0.5–2.0 mL\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eThree volumes, two bottoms\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 40px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 400px; min-width: min(280px, 100%); text-align: center; order: 1;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/BTS-ClearSeal-bags.jpg\" alt=\"ClearSeal tubes in resealable bags of 50\" style=\"width: 100%; max-width: 420px; height: auto; object-fit: contain; border-radius: 8px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%); order: 2;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eResealable Bags Protect What You Don't Use\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003eA 1,000-tube case shouldn't mean 1,000 tubes exposed to the lab.\u003c\/strong\u003e ClearSeal™ tubes ship in 20 resealable sterile bags of 50, so the tubes you haven't used yet stay clean.\u003c\/p\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003eChoose \u003cstrong\u003eprinted white graduations\u003c\/strong\u003e for fast volume checks, or non-graduated tubes for a clean labeling surface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eBuilt for Real-World Workflows\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 28px 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eConical or Self-Standing\u003c\/strong\u003e\u003cbr\u003eConical bottoms for pelleting, skirted bottoms that stand on the bench.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003ePrinted Graduations\u003c\/strong\u003e\u003cbr\u003eCrisp white markings on graduated 1.5 and 2.0 mL formats.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eLoop-Cap Option\u003c\/strong\u003e\u003cbr\u003eC3220-SGL loop caps are easy to grip with gloves.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003e0.5 mL Formats\u003c\/strong\u003e\u003cbr\u003eSmall-volume tubes for precious samples and aliquots.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eGeneric OEM Versions\u003c\/strong\u003e\u003cbr\u003eC3170 and C3172 are unmarked for reagent kits and private-label packaging.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eColor-Coded Caps\u003c\/strong\u003e\u003cbr\u003eSingle-color packs of 1000 O-ring caps in six colors.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 40px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 400px; min-width: min(280px, 100%); text-align: center; order: 2;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/BTS-ClearSeal-caps-AST.jpg\" alt=\"ClearSeal assorted color O-ring caps\" style=\"width: 100%; max-width: 420px; height: auto; object-fit: contain; border-radius: 8px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%); order: 1;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eBuild Your Own Kit: Tubes + Color-Coded Caps\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003ePackaging reagents or building diagnostic kits?\u003c\/strong\u003e Pair the uncapped C3172 generic 2.0 mL tube (1000\/bag) with C3175 O-ring screw caps in natural, blue, green, orange, red, yellow, or assorted.\u003c\/p\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003eColor-code by reagent, lot, or customer, then cap only what you fill.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eChoose Your Format\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003e0.5 mL\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C3205-C (conical), C3205-S (self-standing)\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Small-volume aliquots and precious samples\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003e1.5 mL\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C3215-CG (conical), C3215-SG (self-standing, graduated)\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e General storage and centrifugation\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003e2.0 mL\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C3220-CG, C3220-SG, C3220-SGL (loop cap)\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Larger volumes with printed graduations\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003eOEM \u0026amp; Kits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C3170 (sterile, capped), C3172 (uncapped), C3175 caps\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Reagent kits and private-label packaging\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul style=\"margin: 0; padding-left: 20px; columns: 2 260px;\"\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003e−80 °C sample and reagent storage\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eHeat-block incubation and boiling\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eHigh-speed microcentrifugation\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eReagent kit and diagnostic packaging\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eBiobanking and aliquoting\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eColor-coded sample management\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f9f9f9; border: 1px solid #e0e0e0; border-radius: 8px; padding: 24px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eTip for Kit Builders\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003eOrder C3172 uncapped tubes and C3175 caps separately to control cap color by product or lot, and to fill and cap in your own workflow. Everything is sized to match.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 0.85rem; color: #777; margin: 20px 0 0 0;\"\u003e*Centrifugation rating refers to liquids with a specific gravity of 1.0, using appropriate rotors, cushions, and adapters.\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; margin: 16px 0 0 0;\"\u003eNeed a −90 °C rating or amber tubes? See \u003ca href=\"\/products\/mtc-bio-screwseal%E2%84%A2-polypropylene-microcentrifuge-tubes\" style=\"color: #1f6fb2; font-weight: 600;\"\u003eScrewSeal™ Screw Cap Microtubes\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"border-top: 1px solid #e0e0e0; margin-top: 40px; padding-top: 20px;\"\u003e\u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\" style=\"width: 100%; padding: 20px 0; font-family: 'Open Sans', sans-serif; font-weight: 300; color: #333;\"\u003e\n\u003ch3 style=\"font-size: 1.1rem; font-weight: 600; margin: 0 0 16px 0;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eAre ClearSeal™ tubes a good alternative to Axygen® screw cap tubes?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eFor most storage and centrifugation applications, yes. ClearSeal™ tubes are ultra-clear, sterile, O-ring sealed, and packed in resealable bags of 50, with OEM tubes and colored caps for kit builders. Confirm fit in your specific racks and rotor. Axygen® is a trademark of its respective owner; Blue Tiger Scientific is not affiliated.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eWhat is the difference between ClearSeal™ and ScrewSeal™?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eClearSeal™ tubes ship in resealable sterile bags of 50, offer 0.5 mL sizes and printed graduations, and seal from −86 °C to +121 °C. ScrewSeal™ tubes are rated to −90 °C and offer an amber light-blocking option.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eCan I buy uncapped tubes and caps separately?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eYes. The C3172 is an uncapped, non-graduated 2.0 mL tube (1000\/bag), and C3175 O-ring caps come in natural, blue, green, orange, red, yellow, or assorted. This is ideal for reagent kits and OEM packaging.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eAre ClearSeal™ tubes sterile?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eAll capped ClearSeal™ tubes are sterile and RNase-, DNase-, and pyrogen-free. The C3172 uncapped tubes and C3175 caps are non-sterile.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eHow fast can ClearSeal™ tubes be centrifuged?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eUp to 22,000 × g for liquids with a specific gravity of 1.0, using appropriate rotors, cushions, and adapters.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eIs there a loop-cap option?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eYes. The C3220-SGL is a 2.0 mL self-standing, graduated tube with a loop cap.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"MTC Bio","offers":[{"title":"C3205-C | ClearSeal 0.5mL | 10.2x36.5mm | Sterile | O-ring | Screw caps | Conical | Non-graduated | 50\/bag | 20 bags\/case | 1000 count","offer_id":50086952763690,"sku":"BTS-C3205-C","price":316.38,"currency_code":"USD","in_stock":true},{"title":"C3205-S | ClearSeal 0.5mL | 13x47.3mm | Sterile | O-ring | Screw caps | Self-standing | Non-graduated | 50\/bag | 20 bags\/case | 1000 count","offer_id":50086956302634,"sku":"BTS-C3205-S","price":316.38,"currency_code":"USD","in_stock":true},{"title":"C3215-CG | ClearSeal 1.5mL | 12.8x45.3mm | Sterile | O-ring | Screw caps | Conical | Non-graduated | 50\/bag | 20 bags\/case  | 1000 count","offer_id":50086956335402,"sku":"BTS-C3215-CG","price":316.38,"currency_code":"USD","in_stock":true},{"title":"C3215-SG | ClearSeal 1.5mL | 12.8x47.6mm | Sterile | O-ring | Screw caps | Self-standing | Graduated | 50\/bag | 20 bags\/case  | 1000 count","offer_id":50086956368170,"sku":"BTS-C3215-SG","price":316.38,"currency_code":"USD","in_stock":true},{"title":"C3220-CG | ClearSeal 2.0mL | 12.9x46.5mm | Sterile | O-ring | Screw caps | Conical | Graduated | 50\/bag | 20 bags\/case  | 1000 count","offer_id":50086956400938,"sku":"BTS-C3220-CG","price":316.38,"currency_code":"USD","in_stock":true},{"title":"C3220-SG | ClearSeal 2.0mL | 13.1x46.8mm | Sterile | O-ring | Screw caps | Self-standing | Graduated | 50\/bag | 20 bags\/case  | 1000 count","offer_id":50086956433706,"sku":"BTS-C3220-SG","price":316.38,"currency_code":"USD","in_stock":true},{"title":"C3220-SGL | ClearSeal 2.0mL | 13x49.2mm | Sterile | O-ring | Screw loop-caps | Self-standing | Graduated | 50\/bag | 20 bags\/case  | 1000 count","offer_id":50086956466474,"sku":"BTS-C3220-SGL","price":330.18,"currency_code":"USD","in_stock":true},{"title":"C3170 | ClearSeal 2.0mL | 13.1x46.8mm | Sterile | O-ring | Colorless screw cap | No graduations | OEM\/Reagent kits | 50\/bag | 20 bags\/case  | 1000 count","offer_id":50086982123818,"sku":"BTS-C3170","price":259.17,"currency_code":"USD","in_stock":true},{"title":"C3172 | ClearSeal 2.0mL | **No cap** | Non-sterile | No graduations | OEM\/Reagent kits | 1000 tubes\/bag","offer_id":50086982156586,"sku":"BTS-C3172","price":153.31,"currency_code":"USD","in_stock":true},{"title":"C3175-N | Screw cap for 2.0mL (C3172) | Natural | O-ring | Non-sterile | 1000 caps\/bag","offer_id":50086982189354,"sku":"BTS-C3175-N","price":101.77,"currency_code":"USD","in_stock":true},{"title":"C3175-B | Screw cap for 2.0mL (C3172) | Blue | O-ring | Non-sterile | 1000 caps\/bag","offer_id":50086982222122,"sku":"BTS-C3175-B","price":111.54,"currency_code":"USD","in_stock":true},{"title":"C3175-G | Screw cap for 2.0mL (C3172) | Green | O-ring | Non-sterile | 1000 caps\/bag","offer_id":50086982254890,"sku":"BTS-C3175-G","price":111.54,"currency_code":"USD","in_stock":true},{"title":"C3175-O | Screw cap for 2.0mL (C3172) | Orange | O-ring | Non-sterile | 1000 caps\/bag","offer_id":50086982287658,"sku":"BTS-C3175-O","price":111.54,"currency_code":"USD","in_stock":true},{"title":"C3175-R | Screw cap for 2.0mL (C3172) | Red | O-ring | Non-sterile | 1000 caps\/bag","offer_id":50086982320426,"sku":"BTS-C3175-R","price":111.54,"currency_code":"USD","in_stock":true},{"title":"C3175-Y | Screw cap for 2.0mL (C3172) | Yellow | O-ring | Non-sterile | 1000 caps\/bag","offer_id":50086982353194,"sku":"BTS-C3175-Y","price":111.54,"currency_code":"USD","in_stock":true},{"title":"C3175-AST | Screw cap for 2.0mL (C3172) | Assorted (Blue Green  Orange Red Yellow) | O-ring | Non-sterile | 5 bags of 200 caps | 1000 caps total","offer_id":50086982385962,"sku":"BTS-C3175-AST","price":114.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/1_eee0f189-82ae-4461-952a-1f8a7dd2bf0e.png?v=1743884339"},{"product_id":"mtc-bio-centrifuge-tubes-10-15-25-30-50ml","title":"MTC Bio Centrifuge Tubes – 10, 15, 25, 30, 50 \u0026 250 mL; Sterile \u0026 Non-Sterile Options","description":"\u003cdiv style=\"max-width: 1400px; margin: 0 auto; font-family: 'Open Sans', sans-serif; font-weight: 300; color: #333; background: #fff;\"\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 40px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%); text-align: center;\"\u003e\u003cimg alt=\"MTC Bio 15 mL, 30 mL, and 50 mL conical centrifuge tubes\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/BTS-Centrifuge-Tubes-group.png\" style=\"width: 100%; max-width: 440px; height: auto; object-fit: contain; border-radius: 8px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%);\"\u003e\n\u003ch3 style=\"font-size: 1.15rem; font-weight: 400; margin: 0 0 20px 0;\"\u003e\u003cstrong\u003eCentrifuge Tubes: Choose Your Volume, Sterility and Pack\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003eFrom 10 mL sample preparation to 250 mL bulk spins\u003c\/strong\u003e, MTC Bio centrifuge tubes are molded from premium polypropylene for clarity and centrifugal strength. Flat-top screw caps give you a clean surface for labeling, with temperature and speed limits that depend on the selected tube.\u003c\/p\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003eSterile and non-sterile tube options are clearly identified by SKU\u003c\/strong\u003e, and the 15 and 50 mL tubes are leak-proof to 95 kPa (14 psi). Choose racked, bagged, individually wrapped, or non-sterile bulk packaging to match how your lab works.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection data-selection-guide=\"true\" style=\"border:1px solid #d5e3ed;border-radius:8px;padding:24px;margin-bottom:32px;background:#f6f9fc\"\u003e\u003ch3\u003eChoose your centrifuge tube and pack\u003c\/h3\u003e\n\u003cp style=\"line-height:1.6\"\u003e\u003cstrong\u003eStart with 15 or 50 mL:\u003c\/strong\u003e sterile foam-racked C2600\/C2602, bagged C2601\/C2603 and eco-plastic-racked C2607\/C2608 are 500\/case. Individually wrapped C2615-W\/C2650-W are 300\/case. Non-sterile C2601-B\/C2603-B are 500\/case with separately packed caps. Light-blocking amber C2601-AM (15 mL, bags of 50) and C2603-AM (50 mL, bags of 25) are sterile, 500\/case. Spare sterile blue caps: C2601-CAP (15 mL) and C2603-CAP (50 mL), 500\/bag.\u003c\/p\u003e\n\u003cp style=\"line-height:1.6\"\u003e\u003cstrong\u003eOther live choices:\u003c\/strong\u003e C2410 is 10 mL, 1,000\/case. Sterile 25 mL C2625-B (bagged) and C2625-R (racked) are 200\/pack. C2630 (30 mL) and C2605 (50 mL) are self-standing, 500\/case. C1250 is 250 mL, 70\/case with one six-position rack; R1900 is five racks only.\u003c\/p\u003e\n\u003cp style=\"line-height:1.6\"\u003e\u003cstrong\u003eDo not infer sterility from a suffix:\u003c\/strong\u003e C2625-B is sterile, unlike C2601-B and C2603-B. Match tube geometry, rotor support and the SKU-specific RCF rating before ordering.\u003c\/p\u003e\u003c\/section\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 16px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003e15,000 × g*\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003e50 mL conical max RCF\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003e12,000 × g*\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003e15 mL and 10 mL max RCF\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003e−86 °C\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eStandard 15, 30 and 50 mL tubes\/caps\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003e95 kPa\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eLeak-proof rating, 15 and 50 mL\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eWhy Labs Choose MTC Bio Conical Tubes\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 28px 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eStandard Formats\u003c\/strong\u003e\u003cbr\u003e15 mL (17 × 121 mm) and 50 mL (29 × 117 mm) tubes fit standard rotors, racks, and adapters.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eFlat Marking Caps\u003c\/strong\u003e\u003cbr\u003eA flat top surface plus a frosted marking area on the tube for clear sample IDs.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eSelf-Standing Options\u003c\/strong\u003e\u003cbr\u003eC2605 (50 mL) and C2630 (30 mL) have skirted bottoms that stand without a rack.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eRacked or Bagged\u003c\/strong\u003e\u003cbr\u003eFoam racks, reusable eco-plastic racks, or sterile bags of 25 to 50 tubes.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eIndividually Wrapped\u003c\/strong\u003e\u003cbr\u003eC2615-W and C2650-W stay sterile until the moment you open the peel pack.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eBulk for Fillers\u003c\/strong\u003e\u003cbr\u003eC2601-B and C2603-B ship non-sterile with separately packaged caps for high-volume filling.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 40px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 400px; min-width: min(280px, 100%); text-align: center; order: 1;\"\u003e\u003cimg alt=\"15 mL tubes in eco-plastic rack\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/BTS-Centrifuge-C2607-rack.jpg\" style=\"width: 100%; max-width: 420px; height: auto; object-fit: contain; border-radius: 8px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%); order: 2;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eRacked Tubes Ready for the Bench\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003ePull a rack from the case and start working.\u003c\/strong\u003e C2607 (15 mL) and C2608 (50 mL) come 25 to a reusable eco-plastic rack in a sterile bag, and C2600 and C2602 come in foam racks.\u003c\/p\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003ePrefer to save shelf space? The bagged versions (C2601, C2603) pack the same tubes in sterile bags of 50 or 25.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eChoose Your Size\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003e10 mL\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C2410, 1000\/cs\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e When 15 mL is too much and 5 mL too little; printed graduations from 1.5 to 10 mL\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003e15 mL\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C2600, C2601, C2607, C2601-B, C2615-W, C2601-AM (amber); caps C2601-CAP\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Cell pelleting, sample prep, and aliquoting\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003e25 mL\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C2625-B (bagged), C2625-R (racked)\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Midipreps; 50 mL diameter at 33% less height\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003e30 mL\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C2630, self-standing\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Low-profile, rack-free storage and mixing\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003e50 mL\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C2602, C2603, C2608, C2605, C2603-B, C2650-W, C2603-AM (amber); caps C2603-CAP\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Cell culture, large preps, and media storage\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003e250 mL\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C1250 (incl. 6-place rack), R1900 extra racks\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Bulk harvests and large-volume spins\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 40px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 400px; min-width: min(280px, 100%); text-align: center; order: 2;\"\u003e\u003cimg alt=\"Individually wrapped sterile centrifuge tubes\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/BTS-Centrifuge-wrapped.jpg\" style=\"width: 100%; max-width: 420px; height: auto; object-fit: contain; border-radius: 8px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%); order: 1;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eSterile Right Up to the Moment You Open It\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003eNo more wondering whether the bag you opened yesterday is still sterile.\u003c\/strong\u003e Individually wrapped C2615-W (15 mL) and C2650-W (50 mL) tubes come in convenient peel packs, 300 per case.\u003c\/p\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003eThey are the same tubes as the bagged and racked versions, with high-contrast graduations and a frosted white marking area.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 40px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 400px; min-width: min(280px, 100%); text-align: center; order: 1;\"\u003e\u003cimg alt=\"50 mL self-standing skirted centrifuge tube\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/BTS-Centrifuge-50mL-selfstanding.png\" style=\"width: 100%; max-width: 420px; height: auto; object-fit: contain; border-radius: 8px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%); order: 2;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eStands on Its Own\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003eThe skirted C2605 (50 mL) and C2630 (30 mL) tubes stand upright on the bench\u003c\/strong\u003e, so filling, labeling, and storage don't require a rack.\u003c\/p\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003eSkirted tubes are rated to 7,000 × g*, ideal for storage, mixing, and moderate-speed spins.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul style=\"margin: 0; padding-left: 20px; columns: 2 260px;\"\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eCell pelleting and cell culture harvests\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eDNA, RNA, and protein preps\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eMedia and buffer aliquoting and storage\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eSample handling and storage within the selected tube’s temperature limits\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eDensity gradient separations\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eReagent and diagnostic kit filling (bulk)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f9f9f9; border: 1px solid #e0e0e0; border-radius: 8px; padding: 24px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eTip for Safer Spins\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003eMatch the tube to its RCF rating: 15 mL conicals to 12,000 × g, 50 mL conicals to 15,000 × g, and skirted tubes to 7,000 × g. Always balance tubes across the rotor and use the correct adapters.\u003c\/p\u003e\n\u003cp style=\"margin: 18px 0 0 0;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/MTC-Bio-Centrifuge-Tube-Brochure.pdf\" rel=\"noopener\" style=\"display: inline-block; background: #1f6fb2; color: #fff; text-decoration: none; padding: 10px 20px; border-radius: 6px; font-size: 0.95rem; font-weight: 600;\" target=\"_blank\"\u003e📄 Download the Centrifuge Tube Brochure (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 0.85rem; color: #777; margin: 20px 0 0 0;\"\u003e*Centrifugation ratings refer to liquids with a specific gravity of 1.0, using appropriate rotors, cushions, and adapters.\u003c\/p\u003e\n\u003cdiv style=\"border-top: 1px solid #e0e0e0; margin-top: 40px; padding-top: 20px;\"\u003e\u003cdiv itemscope=\"\" itemtype=\"https:\/\/schema.org\/FAQPage\" style=\"border-top:1px solid #e0e0e0;margin-top:40px;padding-top:20px\"\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border:1px solid #e0e0e0;border-radius:8px;margin-bottom:10px;padding:14px 16px\"\u003e\u003csummary itemprop=\"name\" style=\"cursor:pointer;font-weight:600\"\u003eAre all of these centrifuge tubes sterile?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cp itemprop=\"text\"\u003eNo. C2601-B (15 mL) and C2603-B (50 mL) are non-sterile bulk tubes with separately packed caps. The other tube SKUs listed here, including the amber C2601-AM and C2603-AM, are sterile. C2625-B is a sterile bagged 25 mL tube; the C2601-CAP and C2603-CAP spare caps are sterile; R1900 is a rack-only accessory.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border:1px solid #e0e0e0;border-radius:8px;margin-bottom:10px;padding:14px 16px\"\u003e\u003csummary itemprop=\"name\" style=\"cursor:pointer;font-weight:600\"\u003eHow do I choose 15 mL versus 50 mL centrifuge tubes?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cp itemprop=\"text\"\u003eChoose the volume required by your protocol, then confirm tube dimensions, rotor support and the allowed RCF. The 15 mL conicals are 17 × 121 mm; 50 mL conicals are 29 × 117 mm. Fit is not guaranteed for every rotor or adapter.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border:1px solid #e0e0e0;border-radius:8px;margin-bottom:10px;padding:14px 16px\"\u003e\u003csummary itemprop=\"name\" style=\"cursor:pointer;font-weight:600\"\u003eWhat is the maximum centrifugal force?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cp itemprop=\"text\"\u003e10 and 15 mL conicals: 12,000 × g; 25 mL conicals: 17,000 × g; 50 mL conicals: 15,000 × g; skirted 30 and 50 mL tubes: 7,000 × g; C1250 250 mL: 6,000 × g. Ratings assume liquid specific gravity 1.0 and appropriate rotors, cushions and adapters.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border:1px solid #e0e0e0;border-radius:8px;margin-bottom:10px;padding:14px 16px\"\u003e\u003csummary itemprop=\"name\" style=\"cursor:pointer;font-weight:600\"\u003eCan the tubes be frozen?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cp itemprop=\"text\"\u003eThe standard 15, 30 and 50 mL tubes and caps are rated to −86 °C. The large-volume C1250 has a manufacturer temperature range of −80 to 120 °C. Do not apply a single temperature specification to every size or accessory.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border:1px solid #e0e0e0;border-radius:8px;margin-bottom:10px;padding:14px 16px\"\u003e\u003csummary itemprop=\"name\" style=\"cursor:pointer;font-weight:600\"\u003eWhy choose a 25 mL tube?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cp itemprop=\"text\"\u003eC2625-B and C2625-R offer a low-profile format between 15 and 50 mL, with a 360-degree support rim. Both are sterile and supplied as eight bags or racks of 25 tubes, 200\/pack. Confirm rotor and rack compatibility.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border:1px solid #e0e0e0;border-radius:8px;margin-bottom:10px;padding:14px 16px\"\u003e\u003csummary itemprop=\"name\" style=\"cursor:pointer;font-weight:600\"\u003eDo 10 mL tubes fit 15 mL equipment?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cp itemprop=\"text\"\u003eThe manufacturer describes C2410 as generally compatible with 15 mL centrifuge rotors, racks and block heaters. Check the 16 × 104 mm dimensions and your equipment requirements before use.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border:1px solid #e0e0e0;border-radius:8px;margin-bottom:10px;padding:14px 16px\"\u003e\u003csummary itemprop=\"name\" style=\"cursor:pointer;font-weight:600\"\u003eWhat is the difference between racked, bagged and individually wrapped tubes?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cp itemprop=\"text\"\u003eRacked packs keep tubes organized for bench use; bagged packs contain multiple tubes together. C2615-W and C2650-W are individually wrapped sterile tubes, 300\/case. Racked and bagged 15 and 50 mL options are 500\/case.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border:1px solid #e0e0e0;border-radius:8px;margin-bottom:10px;padding:14px 16px\"\u003e\u003csummary itemprop=\"name\" style=\"cursor:pointer;font-weight:600\"\u003eDoes the 250 mL option include a rack?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cp itemprop=\"text\"\u003eC1250 includes 70 sterile 250 mL tubes and one six-position rack. R1900 is a separate pack of five racks for six 250 mL tubes each; it does not include tubes.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border:1px solid #e0e0e0;border-radius:8px;margin-bottom:10px;padding:14px 16px\"\u003e\u003csummary itemprop=\"name\" style=\"cursor:pointer;font-weight:600\"\u003eWhen should I use the amber tubes?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cp itemprop=\"text\"\u003eC2601-AM (15 mL) and C2603-AM (50 mL) are light-blocking amber versions of the sterile bagged conical tubes, with flat screw caps, for light-sensitive samples and reagents. Confirm the degree of light protection your application requires.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border:1px solid #e0e0e0;border-radius:8px;margin-bottom:10px;padding:14px 16px\"\u003e\u003csummary itemprop=\"name\" style=\"cursor:pointer;font-weight:600\"\u003eCan I buy replacement caps?\u003c\/summary\u003e\u003cdiv itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cp itemprop=\"text\"\u003eYes. C2601-CAP fits the 15 mL tubes and C2603-CAP fits the 50 mL tubes. Both are sterile blue HDPE screw caps in a resealable bag of 500, useful for re-capping, replacing lost caps or capping bulk-filled tubes.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"MTC Bio","offers":[{"title":"C2600 | Centrifuge Tube 15mL | Conical | PP | Sterile | Flat screw cap | 50\/foam rack | 10 racks\/case","offer_id":50099232178474,"sku":"BTS-C2600","price":202.04,"currency_code":"USD","in_stock":true},{"title":"C2601 | Centrifuge Tube 15mL | Conical | PP | Sterile | Flat screw cap | 50\/bag | 10 bags\/case","offer_id":50099232211242,"sku":"BTS-C2601","price":189.75,"currency_code":"USD","in_stock":true},{"title":"C2601-AM | Centrifuge Tube 15mL | Conical | PP | Sterile | Light-blocking amber | Flat screw cap | 50\/bag | 10 bags\/case","offer_id":52797640507690,"sku":"BTS-C2601-AM","price":169.58,"currency_code":"USD","in_stock":true},{"title":"C2601-B | Centrifuge Tube 15mL | Conical | PP | Non-sterile | Flat screw cap | Bulk bag | 500\/case","offer_id":50099232244010,"sku":"BTS-C2601-B","price":153.82,"currency_code":"USD","in_stock":true},{"title":"C2601-CAP | Screw Caps for 15mL Centrifuge Tubes | Blue | HDPE | Sterile | Resealable bag | 500\/bag","offer_id":52797640573226,"sku":"BTS-C2601-CAP","price":31.02,"currency_code":"USD","in_stock":true},{"title":"C2602 | Centrifuge Tube 50mL | Conical | PP | Sterile | Flat screw cap | 25\/foam rack | 20 racks\/case","offer_id":50099232440618,"sku":"BTS-C2602","price":233.66,"currency_code":"USD","in_stock":true},{"title":"C2603 | Centrifuge Tube 50mL | Conical | PP | Sterile | Flat screw cap | 25\/bag | 20 bags\/case","offer_id":50099232473386,"sku":"BTS-C2603","price":210.12,"currency_code":"USD","in_stock":true},{"title":"C2603-AM | Centrifuge Tube 50mL | Conical | PP | Sterile | Light-blocking amber | Flat screw cap | 25\/bag | 20 bags\/case","offer_id":52797640540458,"sku":"BTS-C2603-AM","price":198.53,"currency_code":"USD","in_stock":true},{"title":"C2603-B | Centrifuge Tube 50mL | Conical | PP | Non-sterile | Flat screw cap | Bulk bag | 500\/case","offer_id":50099232538922,"sku":"BTS-C2603-B","price":192.48,"currency_code":"USD","in_stock":true},{"title":"C2603-CAP | Screw Caps for 50mL Centrifuge Tubes | Blue | HDPE | Sterile | Resealable bag | 500\/bag","offer_id":52797640605994,"sku":"BTS-C2603-CAP","price":49.63,"currency_code":"USD","in_stock":true},{"title":"C2410 | Centrifuge Tube 10mL | PP | Sterile | Flat screw cap | 50\/bag | 20 bags\/case","offer_id":50099232145706,"sku":"BTS-C2410","price":274.06,"currency_code":"USD","in_stock":true},{"title":"C2607 | Centrifuge Tube 15mL | Conical | PP | Sterile | Flat screw cap | 25\/eco-plastic rack | 20 racks\/case","offer_id":50099232276778,"sku":"BTS-C2607","price":202.04,"currency_code":"USD","in_stock":true},{"title":"C2615-W | Centrifuge Tube 15mL | Conical | PP | Sterile | Individually wrapped | 300\/case","offer_id":50099232309546,"sku":"BTS-C2615-W","price":137.59,"currency_code":"USD","in_stock":true},{"title":"C2625-B | Centrifuge Tube 25mL | Conical | PP | Sterile | Screw cap | 25\/bag | 8 bags\/pack","offer_id":50099232342314,"sku":"BTS-C2625-B","price":118.53,"currency_code":"USD","in_stock":true},{"title":"C2625-R | Centrifuge Tube 25mL | Conical | PP | Sterile | Screw cap | 25\/foam rack | 8 racks\/pack","offer_id":50099232375082,"sku":"BTS-C2625-R","price":122.57,"currency_code":"USD","in_stock":true},{"title":"C2630 | Centrifuge Tube 30mL | Free-standing | PP | Sterile | Flat screw cap | 25\/bag | 20 bags\/case","offer_id":50099232407850,"sku":"BTS-C2630","price":197.99,"currency_code":"USD","in_stock":true},{"title":"C2608 | Centrifuge Tube 50mL | Conical | PP | Sterile | Flat screw cap | 25\/eco-plastic rack | 20 racks\/case","offer_id":50099232506154,"sku":"BTS-C2608","price":233.66,"currency_code":"USD","in_stock":true},{"title":"C2605 | Centrifuge Tube 50mL | Free-standing | PP | Sterile | Flat screw cap | 25\/bag | 20 bags\/case","offer_id":50099232571690,"sku":"BTS-C2605","price":241.1,"currency_code":"USD","in_stock":true},{"title":"C2650-W | Centrifuge Tube 50mL | Conical | PP | Sterile | Individually wrapped | 300\/case","offer_id":50099232604458,"sku":"BTS-C2650-W","price":167.56,"currency_code":"USD","in_stock":true},{"title":"C1250 | Centrifuge Tube 250mL | PP | Sterile | Screw cap | Includes 6-position tube rack | 5\/bag | 14 bags\/case","offer_id":50099232637226,"sku":"BTS-C1250","price":274.06,"currency_code":"USD","in_stock":true},{"title":"R1900 | Rack for 6 x 250mL Centrifuge Tubes | 5\/pk","offer_id":50099232669994,"sku":"BTS-R1900","price":80.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/1_2e23efad-e7bf-4cbb-b48f-f623f6ac796e.png?v=1744235166"},{"product_id":"heathrow-scientific-1-5-ml-microcentrifuge-tubes-autoclavable-lab-tubes","title":"1.5 mL Microcentrifuge Tubes | Autoclavable Lab Tubes","description":"\u003cdiv style=\"font-family: 'Open Sans Light', sans-serif; font-weight: 300; border-bottom: 1px solid #ccc; padding-bottom: 15px; margin-bottom: 15px;\" id=\"tab-description\" class=\"tab-content is-active\"\u003e\n\u003ch3\u003ePremium 1.5 mL Microcentrifuge Tubes with Graduations and Attached Snap Cap\u003c\/h3\u003e\n\u003cp\u003eExperience superior sample protection and handling with Heathrow Scientific's \u003cstrong\u003e1.5 mL Microcentrifuge Tubes\u003c\/strong\u003e. Designed for the safe and efficient processing of small liquid samples, these high-quality polypropylene tubes feature an attached snap cap for a secure, leak-resistant seal, ensuring complete sample integrity and preventing contamination in critical laboratory applications.\u003c\/p\u003e\n\u003cp\u003eCertified DNase, RNase, and Pyrogen free, these autoclavable tubes are essential for molecular biology and other sensitive procedures. With a frosted writing area for clear labeling and precise graduation markings, they offer unparalleled convenience and reliability for your daily lab work. Now available in economic packs of 500 and 1000.\u003c\/p\u003e\n\u003ch4\u003eKey Features and Benefits\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAttached Snap Cap:\u003c\/strong\u003e Provides easy, one-handed operation and a secure, leak-proof seal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertified Purity:\u003c\/strong\u003e Guaranteed DNase, RNase, and Pyrogen free for sensitive molecular applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutoclavable:\u003c\/strong\u003e Ensures sterility for a wide range of laboratory uses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear Markings:\u003c\/strong\u003e Includes precise graduation markings (0.1 mL, 0.5 mL, 1 mL) and a frosted writing area for easy labeling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSyringe Pierceable Cap:\u003c\/strong\u003e Allows for convenient sample access without compromising sterility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh RCF Rating:\u003c\/strong\u003e Withstands forces up to 16,400 x g, ideal for high-speed centrifugation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube Size:\u003c\/strong\u003e 1.5 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-quality polypropylene\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Natural\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 39.1 mm (1.54 in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Dimension:\u003c\/strong\u003e 10.8 mm (0.43 in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax RCF Rating:\u003c\/strong\u003e 16,400 x g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Quantities:\u003c\/strong\u003e Packs of 500 and 1000\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Heathrow Scientific","offers":[{"title":"Pack of 500","offer_id":50224615457066,"sku":"BTS-1.5MLMT-500","price":19.0,"currency_code":"USD","in_stock":true},{"title":"Pack of 1000","offer_id":50224615489834,"sku":"BTS-1.5MLMT-1000","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/Heathrow-Scientific-15-mL-MICRO-CENTRIFUGE-TUBES-_1726__61747.1717519532.jpg?v=1748035800"},{"product_id":"mtc-bio-macrotube-5ml-tubes","title":"MTC Bio MacroTube® 5 mL Tubes – Screw-Cap \u0026 Snap-Cap, Sterile \u0026 Non-Sterile, incl. Vivid™ Graduated","description":"\u003cdiv style=\"max-width: 1400px; margin: 0 auto; font-family: 'Open Sans', sans-serif; font-weight: 300; color: #333; background: #fff;\"\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 40px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%); text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/BTS-MacroTube-C2545.jpg\" alt=\"MacroTube Vivid 5 mL screw-cap tubes in foam rack\" style=\"width: 100%; max-width: 440px; height: auto; object-fit: contain; border-radius: 8px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%);\"\u003e\n\u003ch3 style=\"font-size: 1.15rem; font-weight: 400; margin: 0 0 20px 0;\"\u003e\u003cstrong\u003eThe 5 mL Tube for Everything Between a Microtube and a Conical\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003eWhen 1.5 mL is too small and 15 mL is overkill, the MacroTube® Vivid™ 5 mL tube is the right size.\u003c\/strong\u003e It brings the conveniences of a 15 mL conical tube, including a screw cap, conical bottom, and printed graduations, to a smaller format that uses less plastic, less freezer space, and less reagent.\u003c\/p\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003eUltra-clear polypropylene tubes are usable from −86 °C to 110 °C\u003c\/strong\u003e and can be centrifuged at up to 25,000 × g*. Each case ships sterile with caps attached in foam racks that take up about 60% less storage space than 15 mL tube racks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 16px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003e25,000 × g*\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eMax centrifugation\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003e−86 to 110 °C\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eFreezer to boiling\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003e0.2 \/ 0.5 mL\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eDual printed graduations\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 180px; min-width: min(160px, 100%); text-align: center; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px 12px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1.6rem; font-weight: 600; color: #1f6fb2; margin: 0 0 6px 0;\"\u003e60% Less\u003c\/p\u003e\n\u003cp style=\"font-size: 0.9rem; line-height: 1.4; margin: 0;\"\u003eStorage space vs. 15 mL racks\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eWhy Labs Choose MacroTube® Vivid™\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 28px 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eVivid Graduations\u003c\/strong\u003e\u003cbr\u003eDual printed graduations every 0.2 mL and 0.5 mL, plus a marking area.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eUnsurpassed Clarity\u003c\/strong\u003e\u003cbr\u003eSee pellets, phases, and volumes at a glance.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eBoil-Ready\u003c\/strong\u003e\u003cbr\u003eRated to 110 °C for boiling and heat-block steps.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eDeep-Freeze Safe\u003c\/strong\u003e\u003cbr\u003eRated to −86 °C for long-term sample storage.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eSterile and Clean\u003c\/strong\u003e\u003cbr\u003eGamma sterilized and RNase-, DNase-, and pyrogen-free.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; min-width: min(260px, 100%); border-left: 3px solid #1f6fb2; padding: 4px 0 4px 16px;\"\u003e\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003e\u003cstrong\u003eFits Standard Equipment\u003c\/strong\u003e\u003cbr\u003eUse the C2570 adapter to run 5 mL tubes in 15 mL rotor cavities.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eWatch the 5 mL MacroTube® System in Action\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 860px; margin: 0 auto; border-radius: 8px;\"\u003e\u003ciframe style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; border-radius: 8px;\" src=\"https:\/\/www.youtube.com\/embed\/-LKjJBdFGUY\" title=\"Watch the 5 mL MacroTube® System in Action\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 40px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 400px; min-width: min(280px, 100%); text-align: center; order: 1;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/BTS-MacroTube-C2570-adapter.png\" alt=\"5 mL to 15 mL rotor adapter\" style=\"width: 100%; max-width: 420px; height: auto; object-fit: contain; border-radius: 8px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%); order: 2;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eUse the Centrifuge You Already Have\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003eThe C2570 adapter seats a 5 mL MacroTube® in a standard 15 mL rotor cavity\u003c\/strong\u003e, so you can switch to 5 mL tubes without buying new rotors (4\/pk).\u003c\/p\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003eWant a dedicated benchtop spin? The \u003cstrong\u003eMyFuge™ 5D\u003c\/strong\u003e digital mini-centrifuge (C2595 with US plug, C2595-E with European 2-prong plug) has a combination rotor that holds four 5 mL tubes and four 1.5\/2.0 mL microtubes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eBuild Your 5 mL System\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003eTubes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eScrew-cap:\u003c\/strong\u003e C2545 Vivid™, C2540, C2540-OB (black), C2535, C2530 (500\/cs)\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eSnap-cap:\u003c\/strong\u003e C2520 sterile; C2500 natural, -AST, -B, -G, -R, -Y, -OB tints (200\/pk)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003eRacks\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C2590 (2-tier, 16-place), C2592 (50-place)\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Bench work with flip-top or screw-cap tubes\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003eFreezer Storage\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C2580-36 (cardboard, 36 screw-cap), C2581 (polycarbonate, 25-place)\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Organized cold storage\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 240px; min-width: min(240px, 100%); border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; background: #f9f9f9;\"\u003e\n\u003cp style=\"font-size: 1rem; margin: 0 0 12px 0;\"\u003e\u003cstrong\u003eAccessories\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eCatalog No.:\u003c\/strong\u003e C2586 CapLock™ clips (20\/pk), C2570 rotor adapters (4\/pk), C2595 \/ C2595-E MyFuge™ 5D, C2500-SK starter kit\u003c\/p\u003e\n\u003cp style=\"font-size: 0.95rem; line-height: 1.6; margin: 0 0 6px 0;\"\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Boiling, centrifuging, and spinning 5 mL tubes\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; gap: 40px; border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"flex: 1 1 400px; min-width: min(280px, 100%); text-align: center; order: 2;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/BTS-MacroTube-C2592-rack.jpg\" alt=\"50-place rack for 5 mL tubes\" style=\"width: 100%; max-width: 420px; height: auto; object-fit: contain; border-radius: 8px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 500px; min-width: min(300px, 100%); order: 1;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eKeep Your Bench Organized\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003e\u003cstrong\u003eThe C2592 rack holds 50 MacroTubes®\u003c\/strong\u003e, flip-top or screw-top, while the C2590 two-tier rack keeps 16 tubes upright and easy to reach.\u003c\/p\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0 0 14px 0;\"\u003eNeed larger or smaller volumes? See our \u003ca href=\"\/products\/mtc-bio-centrifuge-tubes-10-15-25-30-50ml\" style=\"color: #1f6fb2; font-weight: 600;\"\u003econical centrifuge tubes\u003c\/a\u003e (10 to 250 mL) and \u003ca href=\"\/products\/mtc-bio-screwseal%E2%84%A2-polypropylene-microcentrifuge-tubes\" style=\"color: #1f6fb2; font-weight: 600;\"\u003eScrewSeal™ screw cap microtubes\u003c\/a\u003e (1.5 and 2.0 mL).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding-bottom: 40px; margin-bottom: 40px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eTypical Applications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul style=\"margin: 0; padding-left: 20px; columns: 2 260px;\"\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eMid-volume sample prep and aliquoting\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eBacterial culture and minipreps\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eBoiling and heat-block incubation\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eLong-term −80 °C sample storage\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eCell pelleting and resuspension\u003c\/li\u003e\n\u003cli style=\"font-size: 1rem; line-height: 1.6; margin-bottom: 6px;\"\u003eReagent and buffer storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f9f9f9; border: 1px solid #e0e0e0; border-radius: 8px; padding: 24px;\"\u003e\n\u003ch4 style=\"font-size: 1.05rem; font-weight: 400; margin: 0 0 16px 0;\"\u003e\u003cstrong\u003eTip for Boiling Steps\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 1rem; line-height: 1.6; margin: 0;\"\u003eSnap a C2586 CapLock™ clip over the cap before boiling or heating near 100 °C. The breakaway lifting tabs make the clip easy to remove afterward.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 0.85rem; color: #777; margin: 20px 0 0 0;\"\u003e*Centrifugation rating refers to liquids with a specific gravity of 1.0, using appropriate rotors, cushions, and adapters.\u003c\/p\u003e\n\u003cdiv style=\"border-top: 1px solid #e0e0e0; margin-top: 40px; padding-top: 20px;\"\u003e\u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\" style=\"width: 100%; padding: 20px 0; font-family: 'Open Sans', sans-serif; font-weight: 300; color: #333;\"\u003e\n\u003ch3 style=\"font-size: 1.1rem; font-weight: 600; margin: 0 0 16px 0;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eAre MacroTube® Vivid™ tubes a good alternative to Eppendorf® 5.0 mL tubes?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eYes, for most applications. MacroTube® Vivid™ tubes are 5 mL sterile screw-cap tubes with dual printed graduations, rated to 25,000 × g and −86 °C to 110 °C, and they come racked with caps attached. Confirm fit in your specific rotor or adapter. Eppendorf® is a trademark of its respective owner; Blue Tiger Scientific is not affiliated.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eWhy use a 5 mL tube instead of a 15 mL conical?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eFor samples between 2 and 5 mL, a 5 mL tube uses less plastic and less freezer space, and it makes pellets easier to see and recover. MacroTube® racks take about 60% less storage space than 15 mL tube racks.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eCan 5 mL MacroTubes® be used in a 15 mL rotor?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eYes. The C2570 adapter seats a 5 mL tube in a standard 15 mL rotor cavity.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eWhat temperatures can MacroTubes® handle?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eThey are usable from −86 °C to 110 °C, covering freezer storage and boiling steps.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eHow fast can MacroTubes® be centrifuged?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eUp to 25,000 × g for liquids with a specific gravity of 1.0, using appropriate rotors, cushions, and adapters.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eAre the tubes sterile?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eIt depends on the version. C2545, C2540, C2540-OB, C2535, and C2520 are supplied sterile; C2545 tubes are gamma sterilized and certified RNase-, DNase-, and pyrogen-free. The C2500 snap-cap tubes (natural and tinted) and C2530 screw-cap tubes with caps packed separately are non-sterile.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eWhat is the difference between snap-cap and screw-cap MacroTubes®?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eSnap-cap tubes (C2500 series and C2520) have an attached flip-top cap you can open with one hand and come 200\/pk, natural or in blue, green, red, yellow, black, or assorted tints for color coding. Screw-cap tubes (C2530, C2535, C2540, C2545) ship 500\/cs and give the most secure closure for boiling and long-term storage. If you boil snap-cap tubes, secure the caps with C2586 CapLock™ clips.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"border: 1px solid #e0e0e0; border-radius: 8px; margin: 0 0 10px 0; background: #fff;\"\u003e\u003csummary itemprop=\"name\" style=\"cursor: pointer; padding: 14px 16px; font-size: 1rem; font-weight: 600; list-style-position: inside;\"\u003eWhat is the C2595-7 7 mL tube?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"padding: 0 16px 14px 16px;\"\u003e\u003cp itemprop=\"text\" style=\"font-size: 0.97rem; line-height: 1.6; margin: 0;\"\u003eC2595-7 is a 7 mL polypropylene culture\/centrifuge tube with an attached cap, 15 × 60 mm, 200\/pk. It is not a MacroTube® and is slightly narrower and longer, so confirm fit before using it in MacroTube® racks, boxes, or adapters.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"MTC Bio","offers":[{"title":"C2545 | MacroTube® Vivid™ 5mL | White Graduations | Marking Area | Sterile | Screw‑Cap Attached | Snap‑Apart Racks | 10×50 | 500 Total","offer_id":51283640516906,"sku":"BTS-C2545","price":139.37,"currency_code":"USD","in_stock":true},{"title":"C2540 | MacroTube® 5mL | Natural | Sterile | Screw‑Cap Attached | Foam Racks | 500 Total","offer_id":52795574419754,"sku":"BTS-C2540","price":131.59,"currency_code":"USD","in_stock":true},{"title":"C2540-OB | MacroTube® 5mL | Opaque Black | Sterile | Screw‑Cap Attached | Foam Racks | 500 Total","offer_id":52795574452522,"sku":"BTS-C2540-OB","price":151.68,"currency_code":"USD","in_stock":true},{"title":"C2535 | MacroTube® 5mL | Natural | Sterile | Screw Caps Included | Bags of 100 | 500 Total","offer_id":52795574485290,"sku":"BTS-C2535","price":122.98,"currency_code":"USD","in_stock":true},{"title":"C2530 | MacroTube® 5mL | Natural | Non-Sterile | Screw Caps Packed Separately | 500 Total","offer_id":52795574518058,"sku":"BTS-C2530","price":115.95,"currency_code":"USD","in_stock":true},{"title":"C2520 | MacroTube® 5mL | Natural | Sterile | Snap-Cap Attached | 10×20 | 200 Total","offer_id":52795574550826,"sku":"BTS-C2520","price":63.24,"currency_code":"USD","in_stock":true},{"title":"C2500 | MacroTube® 5mL | Natural | Non-Sterile | Snap-Cap Attached | 4×50 | 200 Total","offer_id":52795574583594,"sku":"BTS-C2500","price":52.12,"currency_code":"USD","in_stock":true},{"title":"C2500-AST | MacroTube® 5mL | Assorted Colors | Non-Sterile | Snap-Cap Attached | 4×50 | 200 Total","offer_id":52795574616362,"sku":"BTS-C2500-AST","price":52.12,"currency_code":"USD","in_stock":true},{"title":"C2500-B | MacroTube® 5mL | Blue Tint | Non-Sterile | Snap-Cap Attached | 4×50 | 200 Total","offer_id":52795574649130,"sku":"BTS-C2500-B","price":52.12,"currency_code":"USD","in_stock":true},{"title":"C2500-G | MacroTube® 5mL | Green Tint | Non-Sterile | Snap-Cap Attached | 4×50 | 200 Total","offer_id":52795574681898,"sku":"BTS-C2500-G","price":52.12,"currency_code":"USD","in_stock":true},{"title":"C2500-R | MacroTube® 5mL | Red Tint | Non-Sterile | Snap-Cap Attached | 4×50 | 200 Total","offer_id":52795574714666,"sku":"BTS-C2500-R","price":52.12,"currency_code":"USD","in_stock":true},{"title":"C2500-Y | MacroTube® 5mL | Yellow Tint | Non-Sterile | Snap-Cap Attached | 4×50 | 200 Total","offer_id":52795574747434,"sku":"BTS-C2500-Y","price":52.12,"currency_code":"USD","in_stock":true},{"title":"C2500-OB | MacroTube® 5mL | Opaque Black | Non-Sterile | Snap-Cap Attached | 4×50 | 200 Total","offer_id":52795574780202,"sku":"BTS-C2500-OB","price":52.12,"currency_code":"USD","in_stock":true},{"title":"C2595-7 | Culture\/Centrifuge Tube 7mL | PP | 15×60mm | Cap Attached | 200 Total","offer_id":52795574812970,"sku":"BTS-C2595-7","price":96.98,"currency_code":"USD","in_stock":true},{"title":"C2590 | MacroTube® Rack | 2-Tier | 16-Place | For 5mL Tubes | Qty 1","offer_id":51283640549674,"sku":"BTS-C2590","price":55.52,"currency_code":"USD","in_stock":true},{"title":"C2592 | MacroTube® Rack | 50-Place | Flip-Top \u0026 Screw-Cap Compatible | For 5mL Tubes | Qty 1","offer_id":51283640582442,"sku":"BTS-C2592","price":55.52,"currency_code":"USD","in_stock":true},{"title":"C2586 | CapLock™ Clip | Breakaway Lifting Tabs | For 5mL MacroTubes® | Qty 20","offer_id":51283640615210,"sku":"BTS-C2586","price":35.14,"currency_code":"USD","in_stock":true},{"title":"C2570 | Adapter | 5mL Tube in 15mL Rotor Cavity | Instrument Compatibility Adapter | Qty 4","offer_id":51283640647978,"sku":"BTS-C2570","price":54.81,"currency_code":"USD","in_stock":true},{"title":"C2580-25 | Freezer Box | Cardboard | Hinged Lid | Insert for 25 Snap-Cap 5mL Tubes | 5.25×5.25×3 in | Qty 5","offer_id":51283666829610,"sku":"BTS-C2580-25","price":31.56,"currency_code":"USD","in_stock":true},{"title":"C2580-36 | Freezer Box | Cardboard | Hinged Lid | Insert for 36 Screw-Cap 5mL Tubes | 5.25×5.25×3 in | Qty 5","offer_id":51283666862378,"sku":"BTS-C2580-36","price":31.56,"currency_code":"USD","in_stock":true},{"title":"C2581 | Freezer Box | Polycarbonate | 17.4mm Wells | 25-Place (5×5) | For 5mL Tubes | Qty 5","offer_id":51283666895146,"sku":"BTS-C2581","price":101.82,"currency_code":"USD","in_stock":true},{"title":"C2595 | MyFuge™ 5D Digital Centrifuge | Combination Rotor: 4×5mL + 4×1.5\/2.0mL | 5500 rpm | 100–240V | US Plug | Qty 1","offer_id":51283666927914,"sku":"BTS-C2595","price":671.84,"currency_code":"USD","in_stock":true},{"title":"C2595-E | MyFuge™ 5D Digital Centrifuge | Combination Rotor: 4×5mL + 4×1.5\/2.0mL | 5500 rpm | 100–240V | European 2-Prong Plug | Qty 1","offer_id":52804560945450,"sku":"BTS-C2595-E","price":696.88,"currency_code":"USD","in_stock":true},{"title":"C2500-SK | MacroTube® 5mL Starter Kit | 200 Snap-Cap + 200 Screw-Cap Sterile Tubes | Racks, Boxes, Adapters \u0026 Clips | Qty 1","offer_id":52795574845738,"sku":"BTS-C2500-SK","price":257.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/C2545.jpg?v=1774278661"}],"url":"https:\/\/bluetigerscientific.com\/collections\/tubes-1.oembed","provider":"Blue Tiger Scientific","version":"1.0","type":"link"}