Caps, Headspace, Crimp Top, with Dark Grey Butyl Rubber Septa, fitted in Aluminum, Silver Caps with 10mm center holes. For use with 20mm Crimp Top Headspace Vials. MicroSolv Brand. 100/PK.
Butyl Rubber Septa is 55⁰ Shore A (hardness) and is 3.0mm thick. Temperature resistant from -40C to 120C. Recommended for non critical analyses or when PTFE is an analyte or must be avoided.
Low cost for budget minded laboratories.