The Rheem-Ruud 70-61674-21 Blower Housing with Wheel is a durable replacement assembly designed to deliver efficient airflow in compatible HVAC systems. It works by enclosing the blower wheel and directing air as the wheel rotates, ensuring consistent circulation through the heating or cooling components and ductwork. Commonly used in Rheem and Ruud furnaces, air handlers, and package... https://www.partshnc.com/70-61674-21-rheem-ruud-blower-housing-wwheel