Jeacent Durable Window Air Conditioner Cover Light Duty, Large Stop cold air from drafting through air conditioners during cold months.Preventing moisture build up. Prolong A/C life. Features: -Cover all outside of the window A/C units, especially the bottom -Reduce heating costs -Blocks cold air drafts from entering your home -Preventing moisture build up -Keep debris, insects, and other unwanted items out -Prolong A/C life -High quality lightweight material that are both water proof and winter weather-resistant -Works with any brand name Window Mounted Air Conditioner -Easy Assembly, Durable, and Convenient Specifications: – 27″width x 20 “deep x 18″high – Support A/C BTU ratings of: 12,000 – 15,000 BTU Model # ACC01C-1 Features: Inside Dimensions – 27″width x 20″deep x 18″high. Fits Most 12,000 – 15,000 BTU Window Air Conditioner Units Stop cold air drafts from entering through air conditioners, cover all the outside(bottom included) of window-mounted air conditioning unit Reduce heating costs prolong A/C life during winter, eliminate the need to remove and reinstall A/C unit Light duty durable material – waterproof, highly resistant to sunlight, mold, mildew, moisture and temperature extremes Breezy Installation – secure with two sturdy adjustable straps