The Broan S1108439 Ventilation Fan Blower Assembly circulates air through the ventilation system to support proper airflow and exhaust operation. This assembly uses an electric motor and blower wheel to draw air into the ventilation housing and move it through the connected ductwork. Installed within the ventilation unit, it works with the fan housing and duct system to remove indoor ... https://www.hnkparts.com/broan-s1108439-blower-assembly-l150-20268/4-S1108439.html