Polar White City/Gravity Water Hatch without Door - This water fill center comes with both the city and gravity water fills. No doors or locks and mounts in a low profile setting, this is easy to install. It comes with a plastic city water fill check valve that is replaceable. Built with a 1/2 inch screened air vent to make filling your fresh water easier and will accept either a 1-1/4 inch or 1-3/8 inch fill hose. Does NOT include a door. Polar White in color, but can be painted to match any exterior. Dimensinos: (Cutout) 3-3/4 inch x 6 inch and (Outside) 5-5/16 inch x 7-9/16 inch and (Overall Depth) 2-1/2 inch. 1 per package.