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.

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White Polypropylene Screw Caps, PE Foam Liner, Qorpak®

Supplier: Qorpak

Polypropylene caps with PE Foam liners are known for good impact strength, and pliability.

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Screw Caps for GPI Screw Threads, Chemglass

Supplier: Chemglass

Thread Size: 18-415; Liner Type: fluoropolymer resin. Cap for use with CG-190 G.P.I. screw thread tube. Part numbers CG-191-01 through CG-191-12 are made of black plastic with a choice of white rubber or fluoropolymer resin liner.

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Aluminum Seals with Septa, 20 mm, preassembled, Restek

Supplier: Restek

Restek's aluminum seals are durable for reliable pressured seals to a predefined release level.

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Conductive Caps, CEC Series, Caplugs

Supplier: Caplugs

CEC series conductive caps are for all common sizes of threaded electrical and electronic connectors. Also suitable for protecting non-threaded bayonet type connectors. In addition to dissipating electrostatic charges, they provide an electrical shield over the end of the connector.

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Plug Stoppers, 12 mm, Globe Scientific

Supplier: Globe Scientific

These polyethylene plug caps are available in a selection of colors to facilitate sample identification.

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Optimum Growth® Bi-directional Transfer Caps

Supplier: THOMSON INSTRUMENT CO

Thomson’s Bi-directional transfer caps enable precise liquid handling in and out of bioreactors, cell bags, and Optimum Growth® flasks, and are compatible with peristaltic pump setup.

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HPLC Starter Kits, Supply V2.0, SCAT

Supplier: SCAT AMERICAS, INC.

Starter kits consisting of SCAT SafetyCaps, blind plugs, fittings, and air valves for the supply of HPLC systems.

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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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Caps and Septa for 2.0 ml Big Mouth Step Vials, Preassembled, Restek

Supplier: Restek

Caps and septa for 2.0mL big mouth vials are designed to reduce needle-breaking and fit screw-thread vials.

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Optimum Growth® Rapid Clear® 3000 Cap

Supplier: THOMSON INSTRUMENT CO

Thomson’s Rapid Clear® Cap is a breakthrough clarification solution that streamlines downstream processing by eliminating centrifugation and simplifying workflows.

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Aluminum Seals with Septa for 4.0 ml WISP Crimp-Top Vials, Restek

Supplier: Restek

Aluminum seals provide a sturdy cap to crimp-top vials, with wide orifices for easy needle insertion.

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Inverted Liquid Transfer Cap System

Supplier: NEST SCIENTIFIC

Transfer caps for high efficient erlenmeyer flask.

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Cap for Sample Tubes,Tamper Evident, SIMPORT

Supplier: Simport Scientific

Caps made of PE feature a long skirt and a super-fast thread design allowing them to be removed or sealed with a single turn. Caps are designed with flexible sealing lip which provides leakproof seal.