Cartridge Check Valve Housing, 2/pk Back Catalog number: CTS-A11431-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10285 TFE 3-Way Valve 4 (V4) Price on request CTS-A117 Inlet Check Valve Price on request 11-1600 Check Valve, Secondary Inlet Price on request