Outlet Check Valve Back Catalog number: CTS-A103 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21010 Cartridge Check Valve Housing, 2/pk Price on request CTS-10839 Seal Pack Rebuild Kit Price on request 11-4122 PTFE Diaphragm, LC-30AD/i-Series, 2/pk Price on request