PTFE Diaphragm, 2/pk Back Catalog number: 11-2891 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A117 Inlet Check Valve Price on request CTS-21219 Piston, Ceramic Price on request CTS-10560 Seal Wash Plunger Seal, Alliance, 2/pk Price on request