Cartridge Check Valve Housing, 2/pk Back Catalog number: CTS-A11431-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21585 PM Kit, 1220 Price on request 11-3889 Needle Seat Assembly, 0.12mm ID Price on request CTS-0720 Inlet Check Valve Assembly Price on request