Efficient 80% AFUE Low-NOx Single-Stage Gas Furnace The Goodman GR9S800403AX offers an 80% AFUE rating for reliable heating and energy savings, equipped with a nine-speed ECM blower motor to deliver quiet and consistent airflow in up-flow or horizontal configurations; built with a heavy-gauge steel cabinet and low-NOx certified burner for environmental compliance, the Goodman Gas Furnace GR9S800403AX is designed for modern homes requiring efficient, durable, and flexible installation options. Link:- https://www.acunitsforless.com/products/goodman-80-afue-gas-furnace-nine-speed-low-nox-single-stage-gr9s800403ax\ call:- 678-535-7176 mail-sales@acunitsforless.com