Outlet Check Valve Back Catalog number: CTS-A11187 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21164 Rotor Seal, 6 port, Rear Price on request 11-2525 1/4" Short Comp. Screw (Gold-Plated), 10/pk Price on request CTS-0720 Inlet Check Valve Assembly Price on request