Microsolv Screw Cap black, knurled PP, white Sil/red PTFE Fitted Septa, for 13-425mm thread, 15x45mm autosampler vials, 1000 pc/PAK

Caps, Screw Top, with Silicone Rubber / PTFE Septa, fitted in knurled, polypropylene, Black Caps. For use with 13-425mm thread, 15x45mm autosampler vials. BASIK Brand. 1000/CS.