PTFE Diaphragm, 2/pk Back Catalog number: 11-2891 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-2525 1/4" Short Comp. Screw (Gold-Plated), 10/pk Price on request PL7100150 MarvelXACT PLS 100µm x 150mm Price on request 11-1598 Check Valve Assembly, Inlet Price on request