Microsolv Septa, 22mm, natural silicone rubber/ natural PTFE, ultra low bleed. For use with 24mm Caps, 1000 pc/PAK

Silicone Rubber / PTFE Septa 2.5mm thick. This Septa is good for storage or EPA Testing due to the high purity of the rubber and PTFE. Use in screw caps that have 24mm or ND2 threads.. Supplied in a polyethylene Bags.