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-21480 Check Valve, Cartridge Price on request CTS-A106 Rotor Seal Price on request CTS-21012 Compression Screws & Ferrules, 1/16", SS, 5/pk Price on request