Window air conditioner cover saves energy and money! Insulated cover blocks virtually all chilly drafts, dust and pollen that blow through open AC vents. That means you ll reduce heat loss AND your next heating bill. Attractive beige fabric cover features a polyethylene windblocking liner for increased insulation. Slips on almost any standard window or through-the-wall unit that is at least 2"-deep. Removable vinyl tape is included. Machine washable poly/cotton