Inlet Check Valve Back Catalog number: CTS-A159 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-4122 PTFE Diaphragm, LC-30AD/i-Series, 2/pk Price on request CTS-A094 Check Valve Cartridge, 2/pk Price on request CTS-10583 Plunger Rinse Seal Price on request