26 in. Wall Sleeve for Through-the-Wall Air Conditioners

The Keystone 26 in. wall sleeve for through-the-wall air conditioners should be securely fastened within a wall opening before installing the air conditioner. The sleeve helps bear the weight of the air conditioner while keeping it insulated and safe from dust . bugs and other debris that could get sucked into it. Inclement weather . corrosion and other elements cannot match the protective power of this metal sleeve.