Outlet Check Valve Cartridge Back Catalog number: CTS-0620 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-2294-04 Plunger Seals, 4/pk Price on request CTS-21012 Compression Screws & Ferrules, 1/16", SS, 5/pk Price on request 11-4060 Inlet Check Valve Price on request