{"product_id":"mtc-bio-test-tube-plug-caps-12-13mm","title":"MTC Bio Plug Caps for 12 \u0026 13 mm Test Tubes – Caps Only","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\/T1211-C-w-label.jpg?v=1790779067\" alt=\"MTC Bio Plug Caps for 12 \u0026amp; 13 mm Test Tubes – Caps Only\" 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 the matching plug caps without ordering more tubes.\u003c\/h3\u003e\n\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eThese polyethylene plug-type caps are separate accessories for the MTC Bio disposable test-tube family. Choose the 12 mm or 13 mm tube format carefully: the two catalog numbers have very different order quantities.\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;\"\u003ePE\u003c\/p\u003e\n\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003ePolyethylene\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;\"\u003e12 or 13 mm\u003c\/p\u003e\n\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eMatching tube diameter\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;\"\u003e1,000\u003c\/p\u003e\n\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eT1211-C caps per order\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;\"\u003e20,000\u003c\/p\u003e\n\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eT1411-C caps per case\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 This MTC Bio Format\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\u003eCaps only\u003c\/strong\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eNo test tubes are included in either option.\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\u003eDiameter-specific choice\u003c\/strong\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eT1211-C for 12 mm tubes; T1411-C for 13 mm tubes.\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\u003ePlug-type closure\u003c\/strong\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eSelect this format rather than a screw cap or dual-position snap cap.\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\u003eExplicit pack counts\u003c\/strong\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eThe 13 mm option contains 20 bags of 1,000 caps.\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 Configuration 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\u003eT1211-C | 12 mm\u003c\/strong\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003e1,000 caps in one bag. For MTC 12 mm rimless tubes including T1111, T1121, T1211 and T1221.\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\u003eT1411-C | 13 mm\u003c\/strong\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003e20 bags of 1,000 caps, 20,000 total. For MTC T1411 and T1421 13 mm tubes.\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\u003eOther tube brands\u003c\/strong\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eNominal outside diameter alone does not establish plug fit. Confirm the tube opening and manufacturer guidance.\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\u003eDiameter First, Order Quantity Second\u003c\/h3\u003e\n\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eA plug closure must match the intended tube opening. The manufacturer supplies these as separate accessories to its rimless tube range; no leak-proof, pressure-rated or transport-certified seal is established for these caps.\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\/T1411-C-w-label.jpg?v=1790779067\" alt=\"MTC Bio Plug Caps for 12 \u0026amp; 13 mm Test Tubes – Caps Only — 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\u003eClosing matching MTC rimless tubes\u003c\/li\u003e\n\u003cli\u003eAccessory replenishment for general laboratory workflows\u003c\/li\u003e\n\u003cli\u003eBulk tube-and-cap assembly where cleanliness requirements are verified\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 cap catalog number against the matching tube family before opening a bag. Do not use a plug cap as evidence of a leak-proof transport system.\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\u003eRelated workflow:\u003c\/strong\u003e \u003ca href=\"\/products\/mtc-bio-centrifuge-tubes-10-15-25-30-50ml\"\u003eMTC Bio centrifuge tubes\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlternative format:\u003c\/strong\u003e \u003ca href=\"\/products\/mtc-bio-sterile-serological-pipettes-1-to-50-ml-individually-wrapped\"\u003eSterile serological pipettes\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eRelated workflow and alternative-format links do not establish fit or interchangeability. Pipettors and other products are sold separately; use only the explicitly documented model matches above.\u003c\/p\u003e\u003c\/section\u003e\u003cdiv class=\"faq_block\" itemscope itemtype=\"https:\/\/schema.org\/FAQPage\" style=\"border-bottom:1px solid #e0e0e0;padding:0 0 40px;margin:0 0 40px;\"\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"padding:16px 0;border-bottom:1px solid #e0e0e0;\"\u003e\u003csummary itemprop=\"name\" style=\"font-weight:600;cursor:pointer;\"\u003eAre these an alternative to Falcon polyethylene snap caps?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eBoth are polyethylene tube closures, but the closure design differs. Falcon 352003 tubes are supplied with dual-position polyethylene snap caps; these MTC accessories are plug-type caps for the listed MTC 12 or 13 mm rimless tubes. This is an alternative closure format, not a claim that MTC caps fit Falcon tubes or provide the same vented\/closed operation. Trademarks belong to their respective owners; comparison does not imply endorsement, affiliation or common manufacturing origin.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"padding:16px 0;border-bottom:1px solid #e0e0e0;\"\u003e\u003csummary itemprop=\"name\" style=\"font-weight:600;cursor:pointer;\"\u003eDoes this listing include test tubes?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eNo. Both variants contain caps only.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"padding:16px 0;border-bottom:1px solid #e0e0e0;\"\u003e\u003csummary itemprop=\"name\" style=\"font-weight:600;cursor:pointer;\"\u003eWhich cap is for 12 mm MTC tubes?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eT1211-C is listed for the 12 mm rimless tube family: T1111, T1121, T1211 and T1221.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"padding:16px 0;border-bottom:1px solid #e0e0e0;\"\u003e\u003csummary itemprop=\"name\" style=\"font-weight:600;cursor:pointer;\"\u003eWhich cap is for 13 mm MTC tubes?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eT1411-C is listed for the 13 mm family, T1411 and T1421.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"padding:16px 0;border-bottom:1px solid #e0e0e0;\"\u003e\u003csummary itemprop=\"name\" style=\"font-weight:600;cursor:pointer;\"\u003eWhy is the 13 mm order so much larger?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eT1411-C contains 20 bags of 1,000 caps, 20,000 total. T1211-C contains one bag of 1,000. These are not equal-size packs.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"padding:16px 0;border-bottom:1px solid #e0e0e0;\"\u003e\u003csummary itemprop=\"name\" style=\"font-weight:600;cursor:pointer;\"\u003eWhat material are the caps?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eThe manufacturer’s ordering table identifies PE, polyethylene.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"padding:16px 0;border-bottom:1px solid #e0e0e0;\"\u003e\u003csummary itemprop=\"name\" style=\"font-weight:600;cursor:pointer;\"\u003eAre the caps sterile?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eThe reviewed table does not separately confirm sterility for the cap catalog numbers. The matching rimless tubes are non-sterile; do not infer a sterile cap supply.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\" style=\"padding:16px 0;border-bottom:1px solid #e0e0e0;\"\u003e\u003csummary itemprop=\"name\" style=\"font-weight:600;cursor:pointer;\"\u003eWill they fit any 12 or 13 mm test tube?\u003c\/summary\u003e\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp style=\"font-size:1rem;line-height:1.6;\"\u003eNo universal cross-brand fit is established. Nominal tube diameter is not an internal-bore or cap-fit tolerance.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003csection id=\"beacon-accessory-link\" style=\"padding:24px 16px;border-top:1px solid #e0e0e0;\"\u003e\u003cp\u003e\u003cstrong\u003eCompatible accessory:\u003c\/strong\u003e \u003ca href=\"\/products\/mtc-bio-disposable-rimless-test-tubes\"\u003eMatching MTC Bio rimless test tubes (tubes only)\u003c\/a\u003e. T1211-C plug caps fit the 12 mm MTC tube formats T1111, T1121, T1211 and T1221; T1411-C plug caps fit the 13 mm MTC tube formats T1411 and T1421. Tubes and caps are sold separately. This catalog-specific match does not establish cross-brand fit, a leak-proof seal or sterile cap supply.\u003c\/p\u003e\u003c\/section\u003e","brand":"MTC Bio","offers":[{"title":"T1211-C | 12 mm caps only, 1000","offer_id":52797671178538,"sku":"BTS-T1211-C","price":48.02,"currency_code":"USD","in_stock":true},{"title":"T1411-C | 13 mm caps only, 20000","offer_id":52797671211306,"sku":"BTS-T1411-C","price":936.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/T1211-C-w-label.jpg?v=1790779067","url":"https:\/\/bluetigerscientific.com\/products\/mtc-bio-test-tube-plug-caps-12-13mm","provider":"Blue Tiger Scientific","version":"1.0","type":"link"}