Outlet Check Valve Back Catalog number: CTS-A11187 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A11145 Tube Assy, System Outlet, SDS Price on request CTS-0721 Outlet Check Valve Assembly Price on request CTS-10396 Washer Thermo/Dionex™ Model: P1000, P2000, P4000 Price on request