80% 75K Input 2 Stage Variable Speed Up/Horiz 3 Ton Drive 17.5W Furnace EcoNet
80% Two Stage 75K Upflow/Horiz 4 Ton Constant Torq Mtr 17.5W
80% 75K Input 2 Stg Vari Spd Downflow 3 Ton Drive 17.5W Low NOx Furnace EcoNet
80% 75K Input 2 Stage Variable Speed Downflow 3 Ton Drive 17.5W Furnace EcoNet
80% Two Stage 75K Upflow/Horiz 4 Ton Constant Torq Mtr 17.5W Low Nox