Caps, Headspace, Crimp Top, with White Silicone Rubber / Blue PTFE High Purity Septa, fitted in Steel, Magnetic, Gold Caps with 5mm center holes. For use with 20mm Crimp Top Headspace Vials. BASIK Brand. 100/PK.
Silicone Rubber / PTFE with Durometer of 55 Shore A, (hardness) and 4.5mm thick. Wide temperature range from -60⁰ to 200⁰C.
Recommended for CTC™ and other autosamplers.