Closures

Whether protecting the sample from outside contamination or the workplace from the bottled toxic waste, closures guarantee tight and reliable seals. With a vast cap selection for best compatibility with any container, tailoring to specific contents is possible. Temperature resistant models allow any procedure to be completed safely. Available in different finishes, any sensitive chromatography sample is protected. The caps are easy to close with one hand and come in many colors to assist with identification.

Vaplock™ Drum Waste Caps (2" Coarse Thread) and Waste Kits, Cole-Parmer

Supplier: Antyila Scientific

The Vaplock™ closed system design reduces chemical evaporation and exposure to hazardous vapors.

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Cole-Parmer® Essentials Replacement Caps, PP, Antylia Scientific

Supplier: Antyila Scientific

Ensures a leakproof seal.

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Vaplock™ GL 32 Supply Caps, Cole-Parmer

Supplier: Antyila Scientific

The Vaplock™ closed system design reduces chemical evaporation and exposure to hazardous vapors with Vaplock™ solvent reservoir caps.

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Vaplock™ 70 mm Waste Caps (8Tpi Rieke/Hedwin) and Waste Kits, Cole-Parmer

Supplier: Antyila Scientific

The Vaplock™ closed system design reduces chemical evaporation and exposure to hazardous vapors.

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Ultra Yield® Bidirectional Transfer Cap for 1.5 and 2.5 L Flasks

Supplier: THOMSON INSTRUMENT CO

Bidirectional transfer caps for Ultra Yield® 1.5 and 2.5 L flasks create a closed, sterile path to pump culture in or out ideal for harvesting or transferring to larger fermenters without opening the vessel.

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Black Phenolic Hole Caps, Unlined, Qorpak®

Supplier: Qorpak

Phenolic Hole Caps are known for providing the widest range of chemical compatibility and for being the most temperature tolerant of plastic closures

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Black Phenolic Screw Caps, DWK Life Sciences

Supplier: DWK Life Sciences (KIMBLE)

The unique cone liner design offers superior torque retention and excellent sealing characteristics.

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EZBio® Silicone Cap System, 53B Overmolded Caps, PP, with Tubing and Diptube, Cap Assembly

Supplier: Foxx Life Sciences

EZBio® Silicone cap system is a bottle cap assembly made from overmolded platinum-cured silicone, compliant with USP Class VI standards. Designed as a cleanroom-compatible closure for pharmaceutical container closures in ISO-certified cleanroom, this joint-free system eliminates fluid entrapment and leak risk while supporting closed-loop fluid transfer, media and buffer handling, and single-use systems.

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Diamond™ Culture Tube Caps, Globe Scientific

Supplier: Globe Scientific

These caps fit plain-end culture tubes and flasks with deLong style necks or ports.

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VACUCAP™ Tube Closures, Simport Scientific

Supplier: Simport Scientific

Economical, flexible closure to secure tubes use in multiple applications.

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Screw Caps with Rubber Liners, Kimble Chase, DWK Life Sciences

Supplier: DWK Life Sciences (KIMBLE)

Urea screw thread caps with PTFE-faced foam-backed rubber liners

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Polypropylene Closures

Supplier: DWK Life Sciences (KIMBLE)

Polypropylene closures for 13 and 20 mm culture tubes.

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Spectra/Por® Closures for Dialysis Membrane Tubing, Spectrum® Laboratories

Supplier: Spectrum Laboratories

These are used in combination with a standard closure for a vertical use of the dialysis tubing and a magnetic stirrer for continuous stirring of the tubing.

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Test Tube Caps, Caplugs

Supplier: Caplugs

A variety of tube cap options to meet needs. Test Tube Caps are overfitting caps for use with culture tubes.

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Port Caps for Nalgene Plastic Bottles Complete Kit

Supplier: CP Lab Safety

Port cap for Nalgene plastic bottles with a 38-430 bottles, 2-port, with (2) ¹/₄-28 female ports, PTFE insert with Polypropylene collar. Choose adapters based on your tubing size. A set of plugs in included to maintain a closed system when holes are not in use.