Gravity fill has 1-1/4 inch barb connection with 1/2 inch air vent for a fast fill. Universal size fits both 4-1/4 inch width x 4-3/4 inch height & 4 inch width x 3 inch height cutouts. Overall dimensions are 6 inch width x 6-1/2 inch height. Includes installation tape and hardware in a retail package.
