The Friedrich WallMaster 15.5K Thru-the-Wall Air Conditioner redefines cooling and heating with its commitment to superior design and quality. Crafted for both commercial reliability and residential comfort, this unit stands out with its Smart Fan technology, adjusting fan speed automatically for precise temperature control. Featuring essential conveniences like a check filter reminder, control panel lockout, and a washable air filter, the Friedrich WallMaster ensures durability and effortless maintenance.