Outlet Check Valve Back Catalog number: CTS-A121 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21171 Rotor Seal, H-Assy, 6 Port 2-Position Price on request 11-1599 Check Valve Assembly, Outlet Price on request CTS-10583 Plunger Rinse Seal Price on request