PTFE Diaphragm, 2/pk Back Catalog number: 11-2891 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A125 Inlet Check Valve Assembly Price on request CTS-11282 1525 Performance Maintenance Kit Price on request CTS-21567 PM Kit, Seal Wash for Binary Pump G4240A Price on request