The Durastar DRWTCSLV Through-the-Wall Air Conditioner Wall Sleeve in White is a metal accessory designed for wall mounting. This product is specifically manufactured by the Durastar brand and is compatible with through-the-wall air conditioners. It features a California Prop 65 Warning due to its material composition. Perfect for efficiently cooling your home, this air conditioner sleeve offers a sleek and durable design to seamlessly integrate with your wall-mounted unit.