Ideal Pet Ruff Weather 9-3/4 In. x 17 In. Extra Large Plastic Off White Pet Door

All weather energy efficient dog door, made from efficient structural foam molded plastic. Adjustable frame telescopes 3/4 In. to 1-3/4 In. thickness. Nylon for draft restrictor. Double vinyl flap design creates energy efficient air pocket of up to 3 inches between flaps for maximum insulation.