Inside Dimensions: 21"long x 15"high x 3.5"deep. Fits Most 3,000 - 7,000 BTU Window Air Conditioner Units
Prevent wind and cold air drafts from entering through air conditioners while keeping your home from dirt, soot.
Double Insulation: The windblock poly inner lining and the outside cover are stitched together for easy installastion
Lowers heating costs: Eliminate the need to remove and reinstall A/C unit and reduce energy cost.
Remain in place: Adjustable straps on both sides and elastic cords around allows you to achieve a snug fit. Provide 3M Velcro, Easy installation, Minimum Assembly, Reliable, and Convenient.