Check Valve / CV-6644-EZ Aquawin Water Products > EZ & Jaco Fittings > EZ Fittings > Check Valve / CV-6644-EZ Check Valve / CV-6644-EZ C-291-13 INQUIRE NOW Product Description O.D: 3/8” Back Products RO System Units Water Dispensers Whole House Water Filter Whole House UF Water Filter Filtration Systems FRP tank, Brine tank & Control valve Ozonizers UVC Lighting Shower Filter Taiwan Made EVERGREEN Cartridge Everpure Bracket Water Purifier Storage Tanks Filter Housings Cartridge Filters Faucets EZ & Jaco Fittings Water Treatment Media Water Tester RO Accessories