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Test tube closures ensure samples do not leak or are contaminated by providing a reliable seal. Securely mix or store small samples with these tops that allow one-handed sealing. Offered in a variety of colours, identification is made easier. Closures come in screw and snug-fit plug designs to fit any test tube opening style. Resistant to high temperatures, the versatile test tube closures can withstand heating applications while the chemical resistance guarantees limitless sample compatibility.

Test tube closures ensure samples do not leak or are contaminated by providing a reliable seal. Securely mix or store small samples with these tops that allow one-handed sealing. Offered in a variety of colours, identification is made easier. Closures come in screw and snug-fit plug designs to fit any test tube opening style. Resistant to high temperatures, the versatile test tube closures can withstand heating applications while the chemical resistance guarantees limitless sample compatibility.


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Description: Safe-T-Flex caps feature a unique, flexible, over-locking design, locking securely on the outside of the tube lip and can be removed with one hand. A tight seal ensures sample integrity and prevents spillage or evaporation of serum samples. This special seal protects against the aerosols of highly infectious organisms such as TB and the HTLV-III virus. They are colour coded for easy specimen identification and to help guard against cross-contamination. The top of each cap can also be numbered or labelled with indelible ink. Self-locking cap holds firmly in any position and keeps contents secure while in transit. Liquid-tight seal withstands centrifugation, agitation, refrigeration and freezing.
Catalog Number: 548-0711
UOM: 1 * 1.000 items
Supplier: VWR Collection


Description: These closures are suitable for test and culture tubes.
Catalog Number: 217-7005
UOM: 1 * 2.500 items
Supplier: VWR Collection

Description: Screw cap with seal liner, VWR®, Colour: Black, Thread: 15-415
Catalog Number: 212-0855
UOM: 1 * 250 items
Supplier: VWR Collection

Description: Flat screw cap with O-ring for microcentrifuge tubes, VWR®, Colour: Green
Catalog Number: 525-1185
UOM: 1 * 500 items
Supplier: VWR Collection

Environmentally Preferable


Description: Cap for culture and test tube, VWR®, Colour: Natural, Closure type: Dual position type, For tubes: 12 mm
Catalog Number: 211-0039
UOM: 1 * 1.000 items
Supplier: VWR Collection

Environmentally Preferable


Description: Strip of 8 plug caps, J.T.Baker®, Colour: Clear
Catalog Number: 45000-0006
UOM: 1 * 120 items
Supplier: Avantor

Environmentally Preferable


Description: These polypropylene screw caps are to be used with T500 series internal thread sample tubes.
Catalog Number: SIMPT500LOS
UOM: 1 * 1.000 items
Supplier: Simport Scientific


Description: Aluminium.
Catalog Number: LUDI184110623
UOM: 1 * 10 items
Supplier: LUDI


Description: Made of anodised aluminum with stainless steel spring clip.
Catalog Number: LUDI184110853
UOM: 1 * 10 items
Supplier: LUDI


Description: Choice of black phenolic, white polypropylene or urea screw caps
Catalog Number: WHEAW240832
UOM: 1 * 250 items
Supplier: DWK Life Sciences


Description: Red screw cap made of glass-fibre reinforced ETFE, inner parts consisting of a v-ring (ETFE), a tapered ring and a sealing ring (both PTFE) as well as an o-ring (FKM) for tubing diameters under 3 mm, (not exposed to the medium). The medium is only exposed to PTFE.
Catalog Number: BOHLD597-02
UOM: 1 * 1 items
Supplier: Bohlender


Description: Made of anodised aluminium.
Catalog Number: LUDI184010744
UOM: 1 * 100 items
Supplier: LUDI


Description: Axygen® mini tube systems are available in 8-cap or 12-cap strip format.
Catalog Number: 731-0221
UOM: 1 * 400 items
Supplier: Corning


Description: Caps are available either with or without a silicone washer between the cap and the tube to ensure a positive leakproof seal at all temperatures.
Catalog Number: SIMPT502B
UOM: 1 * 1.000 items
Supplier: Simport Scientific


Description: These depyrogenated aluminum caps assists in reducing the chance of contamination, preventing any additional substances or material from entering the testing tubes.
Catalog Number: WAKFCP-13100
UOM: 1 * 50 items
Supplier: FUJIFILM WAKO CHEMICALS


Description: Simplify sample storage with these color-coded caps. Made from Virgin class VI medical grade PP with virgin class VI medical grade silicone O-ring.
Catalog Number: 479-2051
UOM: 1 * 500 items
Supplier: THERMO MATRIX TECHNOLOGIES

Environmentally Preferable


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