Microsolv Screw Cap black, knurled PP, white Sil/red PTFE Pre-slit Bonded 40mil Septa, for 10-425mm threads, 12x32mm autosampler vials, 1000 pc/PAK

Caps, Screw Top, with Silicone Rubber / PTFE Pre-Slit, 40mil Septa, bonded in wide mouth, knurled, polypropylene, Black Caps. For use with 10-425mm threads, 12x32mm autosampler vials. BASIK Brand. 1000/CS.