{"product_id":"mtc-bio-softouch-ulf-pipette-tip-refills","title":"MTC Bio SofTouch ULF Pipette Tip Stacked Refills – Sterile, Non-Filtered, 20–1000 µL","description":"\u003cdiv style=\"max-width:1400px;margin:0 auto;font-family:'Open Sans',sans-serif;font-weight:300;color:#333;background:#fff;padding:16px;\"\u003e\n\u003csection style=\"border-bottom:1px solid #e0e0e0;padding:0 0 40px;margin:0 0 40px;display:flex;flex-wrap:wrap;gap:28px 40px;align-items:center;\"\u003e\u003cdiv style=\"flex:1 1 450px;min-width:min(300px,100%);text-align:center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/Package-P4615-200RL.jpg?v=1793922133\" alt=\"MTC Bio SofTouch ULF Pipette Tip Stacked Refills – Sterile, Non-Filtered, 20–1000 µL\" style=\"width:100%;max-width:440px;height:auto;object-fit:contain;border-radius:8px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 450px;min-width:min(300px,100%);\"\u003e\n\u003ch3\u003eReplenish your low-force pipette tips with sterile, low-retention refill layers.\u003c\/h3\u003e\n\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eMTC Bio SofTouch ULF stacked refills provide sterile, non-filtered, low-retention tips for SofTouch ULF and Rainin LTS pipettors. Choose 20 or 200 µL tips in packs of 960, or 1,000 µL tips in packs of 576. Each refill layer holds 96 tips; confirm the tip size and rack setup before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"border-bottom:1px solid #e0e0e0;padding:0 0 40px;margin:0 0 40px;display:flex;flex-wrap:wrap;gap:28px 40px;\"\u003e\u003cdiv style=\"flex:1 1 180px;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;\"\u003e20–1,000 µL\u003c\/p\u003e\n\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eThree tip capacities\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 180px;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;\"\u003e96 tips\u003c\/p\u003e\n\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003ePer refill layer\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 180px;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;\"\u003e960 or 576\u003c\/p\u003e\n\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eTips per pack\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 180px;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;\"\u003eSterile\u003c\/p\u003e\n\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eNon-filtered refills\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"border-bottom:1px solid #e0e0e0;padding:0 0 40px;margin:0 0 40px;\"\u003e\u003ch3\u003eWhy Labs Choose SofTouch ULF Stacked Refills\u003c\/h3\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:28px 40px;\"\u003e\n\u003cdiv style=\"flex:1 1 280px;min-width:min(260px,100%);border-left:3px solid #1f6fb2;padding:4px 0 4px 16px;\"\u003e\n\u003cstrong\u003eLow-force fit\u003c\/strong\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eMTC Bio specifies a cylindrical collar and positive stop designed to reduce attachment and ejection forces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 280px;min-width:min(260px,100%);border-left:3px solid #1f6fb2;padding:4px 0 4px 16px;\"\u003e\n\u003cstrong\u003eLow-retention polypropylene\u003c\/strong\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eTips use medical-grade polypropylene manufactured for low-retention performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 280px;min-width:min(260px,100%);border-left:3px solid #1f6fb2;padding:4px 0 4px 16px;\"\u003e\n\u003cstrong\u003eSterile refills\u003c\/strong\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eAll three RL options are supplied presterilized and are non-filtered.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 280px;min-width:min(260px,100%);border-left:3px solid #1f6fb2;padding:4px 0 4px 16px;\"\u003e\n\u003cstrong\u003eChoose your pack size\u003c\/strong\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eThe 20 and 200 µL packs contain 10 layers of 96; the 1,000 µL pack contains 6 layers of 96.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"border-bottom:1px solid #e0e0e0;padding:0 0 40px;margin:0 0 40px;\"\u003e\u003ch3\u003eWhich ULF Refill Do I Need?\u003c\/h3\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:28px 40px;\"\u003e\n\u003cdiv style=\"flex:1 1 280px;min-width:min(260px,100%);border-left:3px solid #1f6fb2;padding:4px 0 4px 16px;\"\u003e\n\u003cstrong\u003eP4615-20RL: 20 µL\u003c\/strong\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003e10 layers of 96; 960 tips per pack. MTC Bio lists this size for compatible 2, 10 and 20 µL pipettors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 280px;min-width:min(260px,100%);border-left:3px solid #1f6fb2;padding:4px 0 4px 16px;\"\u003e\n\u003cstrong\u003eP4615-200RL: 200 µL\u003c\/strong\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003e10 layers of 96; 960 tips per pack. MTC Bio lists this size for compatible 50, 100 and 200 µL pipettors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 280px;min-width:min(260px,100%);border-left:3px solid #1f6fb2;padding:4px 0 4px 16px;\"\u003e\n\u003cstrong\u003eP4615-1000RL: 1,000 µL\u003c\/strong\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003e6 layers of 96; 576 tips per pack. MTC Bio lists this size for compatible 1,000 µL pipettors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 280px;min-width:min(260px,100%);border-left:3px solid #1f6fb2;padding:4px 0 4px 16px;\"\u003e\n\u003cstrong\u003eNeed a filter?\u003c\/strong\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eThese RL refills are non-filtered. Choose a separately sold filtered racked format when your protocol requires a barrier.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"border-bottom:1px solid #e0e0e0;padding:0 0 40px;margin:0 0 40px;display:flex;flex-wrap:wrap;gap:28px 40px;align-items:center;\"\u003e\u003cdiv style=\"flex:1 1 450px;min-width:min(300px,100%);\"\u003e\n\u003ch3\u003eRefill Layers for Low-Force Pipetting\u003c\/h3\u003e\n\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eA cylindrical collar and positive stopping point are designed to provide a consistent seal with lower attachment and ejection forces. MTC Bio specifies these tips for SofTouch ULF and Rainin LTS pipettors. Refills and prefilled racks are distinct formats; pipettor compatibility does not establish third-party rack interchangeability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 450px;min-width:min(300px,100%);text-align:center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/Package-P4615-1000RL.jpg?v=1793922134\" alt=\"MTC Bio SofTouch ULF Pipette Tip Stacked Refills – Sterile, Non-Filtered, 20–1000 µL — manufacturer product image\" style=\"width:100%;max-width:440px;height:auto;object-fit:contain;border-radius:8px;\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"border-bottom:1px solid #e0e0e0;padding:0 0 40px;margin:0 0 40px;\"\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRoutine sample and buffer transfer using compatible low-force pipettors\u003c\/li\u003e\n\u003cli\u003eReplenishing a laboratory stock of non-filtered tips\u003c\/li\u003e\n\u003cli\u003eMolecular biology workflows where specified cleanliness meets the method\u003c\/li\u003e\n\u003cli\u003ePreparing sample dilutions and reagents with the appropriate tip size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eConfirm material compatibility and your method’s requirements before use. No additional performance or regulatory certification is implied.\u003c\/p\u003e\u003c\/section\u003e\u003csection style=\"background:#f3f8fc;border-left:4px solid #1f6fb2;padding:24px;margin-bottom:40px;\"\u003e\u003ch3\u003ePractical Bench Tip\u003c\/h3\u003e\n\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eCheck the pipettor family, tip capacity and refill-rack setup before ordering. These refills are non-filtered and do not provide an aerosol-barrier filter.\u003c\/p\u003e\u003c\/section\u003e\u003csection style=\"border-bottom:1px solid #e0e0e0;padding:0 0 40px;margin:0 0 40px;\"\u003e\u003ch3\u003eRelated Laboratory Products\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eAlternative format:\u003c\/strong\u003e \u003ca href=\"\/products\/mtc-bio-softouch-ulf-pipette-tips?variant=53478133956906\"\u003e200 µL SofTouch ULF non-filtered racked tips P4615-200R\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlternative format:\u003c\/strong\u003e \u003ca href=\"\/products\/mtc-bio-softouch-ulf-pipette-tips?variant=53478133891370\"\u003e1,000 µL SofTouch ULF filtered racked tips P4615-1000F\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlternative format:\u003c\/strong\u003e \u003ca href=\"\/products\/mtc-bio-ulf-wide-bore-pipette-tips-lts-compatible\"\u003eMTC Bio ULF wide-bore pipette tips\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eRelated formats are sold separately. Check your pipettor model, tip capacity and rack requirements before ordering.\u003c\/p\u003e\u003c\/section\u003e\u003cdiv class=\"faq_block\" 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 these an alternative to Rainin LTS tip refills?\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;\"\u003eMTC Bio specifies SofTouch ULF tips for Rainin LTS and SofTouch ULF pipettors, making these sterile, non-filtered stacked refills an alternative to consider. For example, P4615-1000RL supplies 576 low-retention, 1,000 µL tips in 6 refill layers; Rainin 30389295 supplies 768 in 8 refills. Confirm your pipettor and rack requirements; tip fit does not establish refill-rack interchangeability. Trademarks belong to their respective owners; comparison does not imply endorsement, affiliation or common manufacturing origin.\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 does P4615-1000RL compare with Rainin 30389295?\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;\"\u003eBoth are listed as sterile, non-filtered, low-retention 1,000 µL stacked refills for LTS pipetting. P4615-1000RL contains 576 tips in 6 layers of 96; Rainin 30389295 contains 768 tips in 8 refills. Confirm rack fit and validate performance before switching; these are products of different manufacturers. Rainin LTS is a registered trademark of Mettler-Toledo Rainin, LLC. MTC Bio is not affiliated with or endorsed by the trademark owner.\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;\"\u003eWhich refill fits my pipettor size?\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;\"\u003eMTC Bio lists P4615-20RL for compatible 2, 10 and 20 µL pipettors; P4615-200RL for 50, 100 and 200 µL; and P4615-1000RL for 1,000 µL pipettors. These are instrument-size selections, not independently validated working ranges.\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;\"\u003eDoes every refill pack contain 960 tips?\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;\"\u003eNo. P4615-20RL and P4615-200RL each contain 10 layers of 96, or 960 tips. P4615-1000RL contains 6 layers of 96, or 576 tips.\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 these filtered tips?\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;\"\u003eNo. P4615-20RL, P4615-200RL and P4615-1000RL are non-filtered. If your protocol calls for a filter, review the separately sold P4615-20F, P4615-200F or P4615-1000F racked options.\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 is P4615-200RL different from P4615-200R?\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;\"\u003eBoth are sterile non-filtered 200 µL tips, 960 per pack. P4615-200RL consists of 10 stacked refill layers of 96; P4615-200R consists of 10 prefilled racks of 96.\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 refills sterile and low-retention?\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. MTC Bio lists all three RL tips as sterile and low-retention. It states that racked and refill tips are wrapped and certified free of endotoxins, pyrogens, RNase, DNase and PCR inhibitors.\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;\"\u003eDo these refills fit every LTS-compatible rack?\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;\"\u003ePipettor compatibility does not establish refill-carrier or rack interchangeability. MTC Bio lists the separately sold P4615-ER20, P4615-ER200 and P4615-ER1000 empty racks by corresponding tip size; confirm rack fit for your setup.\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":"P4615-20RL | 20 µL | 10 × 96 | 960\/pack","offer_id":53478173802794,"sku":"BTS-P4615-20RL","price":50.67,"currency_code":"USD","in_stock":true},{"title":"P4615-200RL | 200 µL | 10 × 96 | 960\/pack","offer_id":53478173835562,"sku":"BTS-P4615-200RL","price":50.67,"currency_code":"USD","in_stock":true},{"title":"P4615-1000RL | 1,000 µL | 6 × 96 | 576\/pack","offer_id":53478173868330,"sku":"BTS-P4615-1000RL","price":50.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/Package-P4615-200RL.jpg?v=1793922133","url":"https:\/\/bluetigerscientific.com\/products\/mtc-bio-softouch-ulf-pipette-tip-refills","provider":"Blue Tiger Scientific","version":"1.0","type":"link"}