Outlet Check Valve Back Catalog number: CTS-A121 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21567 PM Kit, Seal Wash for Binary Pump G4240A Price on request CTS-21243 1/16'' Ferrule set, 2/pk Price on request CTS-10583 Plunger Rinse Seal Price on request