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These 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.
PE
Polyethylene
12 or 13 mm
Matching tube diameter
1,000
T1211-C caps per order
20,000
T1411-C caps per case
No test tubes are included in either option.
T1211-C for 12 mm tubes; T1411-C for 13 mm tubes.
Select this format rather than a screw cap or dual-position snap cap.
The 13 mm option contains 20 bags of 1,000 caps.
1,000 caps in one bag. For MTC 12 mm rimless tubes including T1111, T1121, T1211 and T1221.
20 bags of 1,000 caps, 20,000 total. For MTC T1411 and T1421 13 mm tubes.
Nominal outside diameter alone does not establish plug fit. Confirm the tube opening and manufacturer guidance.
A 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.

Confirm material compatibility and your method’s requirements before use. No additional performance or regulatory certification is implied.
Check 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.
Related workflow: MTC Bio centrifuge tubes.
Alternative format: Sterile serological pipettes.
Related 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.
Both 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.
No. Both variants contain caps only.
T1211-C is listed for the 12 mm rimless tube family: T1111, T1121, T1211 and T1221.
T1411-C is listed for the 13 mm family, T1411 and T1421.
T1411-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.
The manufacturer’s ordering table identifies PE, polyethylene.
The 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.
No universal cross-brand fit is established. Nominal tube diameter is not an internal-bore or cap-fit tolerance.
Compatible accessory: Matching MTC Bio rimless test tubes (tubes only). 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.
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