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 CTS-A094 Check Valve Cartridge, 2/pk Price on request 11-1599 Check Valve Assembly, Outlet Price on request CTS-10772 Pump Seals, Low Pressure Price on request