Inlet Check Valve Back Catalog number: CTS-21147 Availability: In the manufacturer's stock Price on request - + Recommended CTS-A094 Check Valve Cartridge, 2/pk Price on request CTS-A11372 Tube Assy, Transducer to Check Valve, I2V Price on request 11-1239 Ferrule, 1/16", SS, 10/pk Price on request