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

Caps, Snap Top, with Soft-Guard, White Silicone Rubber / Red PTFE Pre-Slit (X Shape) Septa, fitted in smooth, polyethylene, Natural Transparent Caps. For use with 11mm, 12x32mm Snap Top autosampler vials. Soft-Guard Brand. 1000/CS.