PTFE Diaphragm, 2/pk Back Catalog number: 11-2891 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10761 HPMV 1 & 2 Rebuild Kit w/Spool Price on request CTS-21145 Inlet Check Valve Price on request CTS-11294 1515 Performance Maintenance Kit Price on request