JR Products K7112-6-A City / Gravity Water Hatch is a direct OEM replacement that contains a lead-free brass city water check valve with 1/2" MPT and a gravity spout accepting either 1-1/4" or 1-3/8" water fill hoses. Cutout Dimensions: 4-3/4” Height x 5-7/8” Width; Outside Dimensions: 6-1/2” Height x 7-5/8” Width; Collar Depth: 1-1/2”; Total Depth: 3-1/4”.