Lennox 56K18 Bore Blower Wheel, measuring 18 x 15 inches with a 1 7/16-inch bore, is a replacement component designed for compatible Lennox furnaces and air handlers. It rotates within the blower assembly to move conditioned air through the HVAC system and connected ductwork. Proper airflow supports efficient heating and cooling while helping maintain consistent indoor temperatures. T... https://www.partshnc.com/56k18-lennox-18-x-15-1-716-bore-blwr-whl