9mm Septa are available in PTFE/ Red Rubber, PTFE/Silicone or Red PTFE/White Silicone/Red PTFE to suit a variety of applications. Shop Thermo Scientific™ 9mm Autosampler Thermo Scientific™ 9mm Autosampler Vial Septa: Autosampler Vial Caps and Closures Autosampler Vials, Caps, and Closures | Fisher Scientific