8-425mm Flangeless Black Open Hole Polypropylene Closure, Red PTFE/Silicone Septa, 0.065" 806550L-08

Preassembled Closure and Septa.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.