Thetford 94224 6″ City / Gravity Water Hitch with Brass Check Valve – Polar WhiteTheThetford 94224 comes with both city and gravity fills and is built for convenience. No Doors or locks and mount in a low profile setting. Comes with brass city water fill check valve. Built with high-quality resins that adhere to the following criteria: UV and impact resistant, chemically resistant to road salts and acids, paintable.Factory Tested: Factory tested for zero leakageLB&B Molders: Cross-reference number 601-005-94224Standards: IAPMO, NSF, CSA, and TEI CertifiedAdditional InformationConnection TypeMPTCutout Dimensions3-3/4″H X 6″ WOutside Diensions5-5/16″H X 7-9/16″W X 2-1/2″DColorPolar White