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Chemware* FEP (Fluorinated Ethylene Polymer) Film Gas Bags
Made of 5 mil. FEP fluoropolymer film, these flexible, sturdy bags are heat-sealed on all four sides for complete chemical resistance and leakproof operation. Inert to almost all chemicals. Low permeability of FEP limits sample loss. Available with either a nickel-plated, brass on/off valve that accepts 1/4 in. ID flexible tubing or with PTFE/silicone septum in polypropylene housing for use with a hypodermic needle.