Cartridge Check Valve Housing, 2/pk Back Catalog number: CTS-A11431-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11313 PEEK™ Rotor, LPV Price on request CTS-12013 Tungsten Lamp (1000 hr) Price on request CTS-21012 Compression Screws & Ferrules, 1/16", SS, 5/pk Price on request