Qorpak® 42oz Amber Wide Mouth Packer w/70-400 Green Thermoset F217 & PTFE Cap, Vacuum, 6PK

Thermoset bottle caps with PTFE liners provide the widest range of chemical compatibility & are the most temperature tolerant of plastic closures. Package Qty of 500.

Wheaton® 20mm Seal, Open Top Hole Cap, Aluminum Green, Unlined. The Unlined Aluminum Seal exposes the top of the rubber septum to the syringe. A rubber septa with rubber formulations of gray butyl, natural rubber and silicone can be purchased separately. The aluminum seal can be attached to a serum bottle or vial with a Crimper and easily removed with a Decapper.

PolyCone Lined Phenolic Caps form an exceptionally tight seal and offer a good chemical barrier. This liner molds itself around the sealing areas of the finish as the cap is screwed on, virtually eliminating leakage, evaporation, contamination, binding and backing off. Great for everything from liquids, to soaps, to macro-invertebrates.

Qorpak CAP-05785 White Ribbed PP Cap with SturdeeSeal PE Foam Liner, 20-410 Neck Finish, Case of 7,200 Polypropylene SturdeeSeal® PE Foam Lined Caps are known for good impact strength, cost effectiveness, and pliability. These polypropylene closures with foamed polyethylene liners have excellent sealing characteristics and offer good chemical resistance including acids, alcohols, alkalis, aqueous products, cosmetics, household oils and solvents. 20-410 White Ribbed PP Cap with SturdeeSeal PE Foam Liner, Case of 7,200. Bulk packaging.

Qorpak CAP-00161 Black Ribbed Phenolic PolyCone Lined Cap, 22-400 Neck Finish, Case of 576 PolyCone Lined Phenolic Caps form an exceptionally tight seal and offer a good chemical barrier. This liner molds itself around the sealing areas of the finish as the cap is screwed on, virtually eliminating leakage, evaporation, contamination, binding and backing off. Great for everything from liquids, to soaps, to macro-invertebrates.