The Champion® Momentum™ Series AL19 air conditioner offers a 19 SEER rating with a two-stage operation, delivering ENERGY STAR® certified efficiency and versatile system compatibility. Its compact design fits in tight spaces while still delivering superior comfort. You can choose a traditional thermostat or our Momentum™ Hx™3 Touch-screen Thermostat, which adds advanced communication features and a more convenient first setup. Built and assembled in the United States, the AL19 air conditioner ensures that your family stays comfortable for many years.