Cartridge Check Valve Housing, 2/pk Back Catalog number: CTS-A11431-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11434 Sapphire Plunger Price on request CTS-21463 Check Valve Cartridge, Ceramic, 2/pk Price on request CTS-21011 Cartridge Check Valve System Kit Price on request