Microsolv Screw Cap black, knurled PP, solid, red Butyl/grey PTFE Liner, for 24-400mm threaded EPA Style vials, 100 pc/PAK

Caps, Screw Top, Solid, with Red Butyl Rubber / Grey PTFE Liner, fitted in knurled polypropylene, White Caps. For use with 24-400mm threaded EPA Style vials. ND24 threads. MicroSolv Brand