The Duck Brand 18 in. x 27 in. Green Plastic Window Unit Air Conditioner Cover is a durable and efficient cover designed specifically for through-the-wall/window air conditioners. Made of plastic and manufactured in 2020, this standard size cover features a green color and is suitable for a variety of air conditioning units. With dimensions of 18 inches in width and 27 inches in length, this cover is easy to install and will help keep your air conditioner protected when not in use. The Duck Brand ensures quality and reliability in their products.