Check Valve Assembly, Inlet Back Catalog number: 11-1598 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A11336-02 Cartridge, Intelligent Valve, 2/pk Price on request CTS-A11431-02 Cartridge Check Valve Housing, 2/pk Price on request CTS-10475-1 Sapphire Plunger Price on request