This gravity water fill is mounted in a durable plastic hatch with a key lock for added security and comes with a new cap, strap and spout for a complete replacement. Hatch is paintable to match any exterior. 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".