Dometic 3311236000 Refrigerator Roof Vent Kit, Polar White

Dimensions - Bottom Flange Overall: 25-7/8"" L x 8-1/4"" W Top: 23"" L x 6-3/4"" W Base Sits 3-5/8"" H Overall Mounting Holes for Cap Spaced: 21-7/8"" L x 5-3/8"" W Cap -Overall: 26-5/8"" L x 11-1/4"" W Cap sits 3-7/8"" H Mounting Holes Spaced: 21-7/8"" L x 5-3/8"" W" Color - White Screws not included.