Cartridge Check Valve Housing, 2/pk Back Catalog number: CTS-21010 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended CTS-21015 Ferrule, 1/16", SS, 3/pk Price on request CTS-10989 Face Seals, 4/pk Price on request PL7025150 MarvelXACT™ PLS 25µm x 150mm Price on request