Microsolv Screw Cap blue, knurled PP, Silicone/PTFE Partial Pre-Slit (Y Shape) Septa, for use with 9-425 thread, 12x32mm autosampler vials, excellent

Caps, Screw Top, with Silicone Rubber / PTFE Partial Pre-Slit (Y Shape) Septa, fitted in knurled polypropylene, Blue Caps. For use with 9-425 thread, 12x32mm autosampler vials. Excellent for GC and GCMS. MicroSolv Brand. 1000/CS.