IDEAL PET PRODUCTS SINCE 1979 Ideal Pet Products Ruff-Weather Pet Door - Super Large

Flap Sizes (2): 15" x 23-1/2". Cut-out: 16-1/4" x 25-3/4" | Overall Dimension: 18 15/16" x 28 1/2". For pets 91 to 120 Lbs | Structural foam plastic frame that adapts to doors ranging from 3/4" to 1-3/4" in thickness | Energy efficient Double Vinyl Flap design creates 3 inch air pocket for maximum insulation | Weatherseal & Nylon Window Pile for added insulation