Outlet Check Valve Back Catalog number: CTS-A121 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11141 ACQUITY SM Performance Maintenance Kit, 700005236 Price on request PL7075600 MarvelXACT PLS 75µm x 600mm Price on request 11-1239 Ferrule, 1/16", SS, 10/pk Price on request