13-425mm Black Open Hole Polypropylene Closure, PTFE/Red Rubber Septa, 0.040" 804040-13

Preassembled Screw Thread Closure and Septa (13-425mm) Choose the preassembled caps with septa best suited for your application.The patented Top Hat™ septa and closure was designed to provide a positive physical lock to assure that preassembled components arrive intact.