Caps, Headspace, Crimp Top, with Grey Butyl Rubber Laminated PTFE Septa, fitted in Aluminum, Silver Pressure Relief Caps with 8mm center holes. For use with 20mm Crimp Top Headspace Vials. MicroSolv Brand. 100/PK.
Butyl Rubber Septa that is laminated with PTFE on both sides and is 55⁰ Shore A (hardness) and is 3.0mm thick. Temperature resistant from -40C to 120C.
Clear lacquered Caps have score lines that will break open at 3.0 +/ 0.5 Bar, for safety. Low cost for budget minded laboratories.