The 18 in. x 27 in. x 16 in. Outside Large Outdoor Window Air Conditioner Cover by Frost King is a durable and reliable accessory for your outdoor air conditioner. Made with a sturdy material and featuring a gray color, this cover measures 20" x 28" x 30" and weighs 0.46 pounds. The model number AC5 indicates that it is specifically designed to fit most standard outdoor air conditioner units, providing protection and insulation during off-season periods. Easy to install and maintain, this cover ensures that your air conditioner stays in top working condition year-round.