Inlet Check Valve Back Catalog number: 11-4060 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended CTS-A11431-02 Cartridge Check Valve Housing, 2/pk Price on request CTS-12016 Compression Screw, 1/16", SS, 10/pk Price on request CTS-10493 Check Valve Cartridge, 2/pk Price on request