Check Valve Assembly, Outlet Back Catalog number: 11-1599 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-5559 Priming Syringe Needle Price on request CTS-10770 Waste Valve, V3 (2 Way Solenoid Valve) Price on request CTS-5746 Reference Valve Rebuild Kit Price on request