Accepts either 1-1/4" or 1-3/8" water fill hose. Has a tank vent connection; Direct OEM replacement; UV and impact resistant; Resistant to road salts and acids; Paintable; Cutout Dim: 3-1/2" dia.; Outside Dim: 4-1/2" dia.; Dish Depth: 3/4"; Spout Depth: 2-1/2".