Microsolv Screw Cap translucent, knurled PP, with white Sil/red PTFE pre-slit (X-shape) Septa, bonded, for 9-425mm thread, 12x32mm autosampler vials,

Caps, Screw Top, with Soft-Guard, White Silicone Rubber / Red PTFE Pre-Slit Septa, bonded in knurled, polypropylene, Translucent Natural Caps. For use with 9-425mm thread, 12x32mm autosampler vials. Soft-Guard Brand. 1000/CS