Goodman - GPUM3 - GPUM34808031 - 4.0 Ton Cooling - 80,000 BTU/Hr Heating - Ultra Low NOx Packaged Gas/Electric Central Heating and Cooling System - Natural Gas - 13.4 SEER2 - 81% AFUE - Downflow/Horizontal - 208 - 230 V - 1 Phase - 60 Hz - R-32 Refrigerant