Cartridge Check Valve Housing, 2/pk Back Catalog number: CTS-A11431-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A11336-02 Cartridge, Intelligent Valve, 2/pk Price on request 11-4121 Ceramic Plunger Holder Assembly, LC-10ADvp Price on request CTS-10759 Piston Seal Backup Ring Price on request