The Haier HTTWS Through-the-Wall Sleeve is an easy-to-install accessoy that is compatible with the HTWR08XC6, HTWR10XC6, HTWR10VC6, HTWR12XC6 and the HTWR12VC6. This wall air conditioner sleeve is designed to minimize heat loss. It reduces outdoor noise transmissions into the room and prevents sleeve condensation. It features an inside and outside metal cover and an architectural aluminum grill. Your air conditioning unit’s maintenance is improved as well.