Bottle Caps

Bottle caps provide an air-tight seal that ensures that a bottle’s contents are leak- and spill-proof, resistant to temperature and that the bottle can be moved. The most ubiquitous style is the threaded screw cap. Caps are available in different sizes and colors and can be specialized for the type of container they sit upon. Popular cap materials include phenolic plastic, polypropylene and PTFE. Bottle caps can be lined with additional material and can be found in solid design or open design, which calls for a septa or insert for complete closure.

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1,306 – 1,320 of 1,400 results

1,306

Chemglass Life Sciences GL-45 Cap with 34.0mm Aperture

GL-45 Cap with 34.0mm Aperture. Open top cap for use with GL screw threads. The cap combined with the CG-197 sealing ring will accommodate tubing of the listed diameter. Cap is made from PBTE (thermoplastic polyester) and will withstand temperatures from -45 to 200 C.

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1,307

Chemglass Life Sciences GL-25 Solid Cap

GL-25 Solid Cap. Cap is made from PBTE (thermoplastic polyester) and will withstand temperatures from -45 to 200 C. PTFE seal is available separately.

Pricing & Availability

1,308

Chemglass Life Sciences GL-45 Solid Cap

GL-45 Solid Cap. Cap is made from PBTE (thermoplastic polyester) and will withstand temperatures from -45 to 200 C. PTFE seal is available separately.

Pricing & Availability

1,309

Ace Glass, Inc. CAP CENTER HOLE GL18 PBT CAP CENTER HOLE GL18 PBT

GL18 Duran, polybutylene terephthalate (PBT) open-top caps with center hole. PBT temperature range is -45 - 180¿C. Can be used with Duran hose connectors, Duran sealing ring for GL thread hose connectors, and silicone or silicone/PTFE septa for Duran caps.