Ideal Pet Designer Series Ruff Weather Door MD Grey 7.25 x 13

Structural foam plastic frame that adapts to doors ranging from 3/4" to 1-3/4" in thickness Double, flexible clear vinyl flaps create a 3" air pocket for maximum insulation and energy efficiency Optional ruff weather pet door wall kit is designed for installation in walls from 4-3/4" to 7-1/4" thicknessYou may also like VEVOR Dog Door for Sliding Glass Door, 75 7/8"-80 11/16" Adjustable Height Doggy Door for Sliding Doors, Aluminum Frame Tempered Glass Pet Door with Hinge Structure Flap and Lock for Large-Sized Dogs.