PerfectAire PAWS1 Thru-The-Wall Air Conditioner Sleeve, Fits Standard 24-Inch TTW A/C Units Fits all standard 24-in. Thru-the-Wall AC units Minimize heat loss and reduce outdoor noise transmissions into the room Quality galvanized steel construction with a durable painted finish Easily adjustable: includes adjustable mounting brackets and locking clips Weather safe: protects unit with weather-tight seal