Microsolv Snap Cap natural transparent, smooth, PE, with 0.04" thick, white Sil/Natural PTFE Pre-Slit Septa, for 11mm, 12x32mm Snap Top autosampler

Caps, Snap Top, with 0.04"" thick, White Silicone Rubber / Natural PTFE Pre-Slit Septa, fitted in smooth, polyethylene, Natural Transparent Caps. For use with 11mm, 12x32mm Snap Top autosampler vials. BASIK Brand. 1000/CS.