Jeacent Window Air Conditioner Cover Medium, Bottom CoveredJeacent Durable Window Air Conditioner Cover Light Duty, Medium 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: – 25″width x 20″deep x 17″high – Support A/C BTU ratings of: 7,000 – 12,000 BTU- Inside Dimensions – 25″width x 20″deep x 17″high. Fits Most 7,000 – 12,000 BTU Window Air Conditioner Units- Stop cold air drafts from entering through units, cover all the outside(bottom included) of window unit- Reduce heating costs prolong A/C life during winter, eliminate the need to remove and reinstall A/C unit- High density durable material – waterproof, highly resistant to sunlight, mold, mildew, moisture and temperature extremes- Breezy Installation – secure with two sturdy adjustable straps