Rheem-Ruud SP20999B Combustion Blower Assembly is a replacement component designed for compatible Rheem-Ruud furnaces and heating equipment. It supplies the controlled airflow required for proper combustion by moving air into the burner system and helping direct combustion gases through the venting process. Proper blower operation supports efficient fuel combustion, stable burner perf... https://www.partshnc.com/sp20999b-rheem-ruud-combustion-blower-assembly