The Champion® Momentum™ Series AL19 19 SEER Two-stage Air Conditioner provides ENERGY STAR® certified performance and system flexibility. Its compact design fits in tight spaces while still delivering superior comfort. Multiple control options give you the control to use either a conventional thermostat or our Momentum™ Hx™3 Touch-screen Thermostat for communicating capability. Designed, engineered and assembled in the United States, the AL19 air conditioner will keep your family comfortable for years to come.