PTFE Diaphragm, LC-30AD/i-Series, 2/pk Back Catalog number: 11-4122 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended 11-4063 Outlet Check Valve Price on request CTS-10985 600/610 Performance Maintenance Kit Price on request CTS-21045 SUS Tubing A Price on request