Microsolv Screw Cap blue, knurled PP, 6mm hole, beige Sil/white PTFE bonded ultra-pure Septa, for 9-425mm thread, 12x32mm autosampler vials, 100 pc/

Caps, Screw Top, with Beige Silicone Rubber / White PTFE ultra-pure Septa, fitted in knurled, polypropylene, Blue Caps with 6mm holes. For use with 9-425 thread, 12x32mm autosampler vials. MicroSolv Brand