Outlet Check Valve Back Catalog number: CTS-A121 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A094 Check Valve Cartridge, 2/pk Price on request 11-4122 PTFE Diaphragm, LC-30AD/i-Series, 2/pk Price on request CTS-11080 Alliant Solvent Mgr PM Kit Price on request