Microsolv Screw Cap white, knurled, PP, natural Sil Rubber/ PTFE Septa, for 24-414mm threaded EPA Style vials, ND24 threads, 100 pc/PAK

Caps, Screw Top, with Natural Silicone Rubber / Natural PTFE Septa, fitted in knurled polypropylene, White Caps. For use with 24-414mm threaded EPA Style vials. ND24 threads. BASIK Brand