JR Products (A6113-A Black Key Lock Gravity Water Hatch Accepts either 1-1/4 or 1-3/8 water fill hose Direct OEM replacement UV and impact resistant, resists road salts and acids Cutout Dimensions: 4-3/8" H x 3-1/8" W; Outside Dimensions: 6-1/4" H x 5" W Collar Depth: 1"; Total Depth: 2-3/4"