Microsolv Septa, 8mm, White Silicone Rubber / Red PTFE, 0.045" thick, 0.321" diameter, 1000 pc/PAK

Septa, 8mm, White Silicone Rubber / Red PTFE that is 0.045" thick and 0.321" diameter for use in 8-425mm thread caps. Caps sold separately. MicroSolv Brand. Used for both HPLC or GC, 8mm caps.