Reznor 96379 3-Blade Fan is a clockwise-rotation fan blade with a 12-inch diameter and 3/8-inch bore, designed to provide efficient airflow in HVAC heating and ventilation systems. It works by attaching to a compatible motor shaft and rotating to move air across system components, supporting proper heat transfer and ventilation. This fan is commonly used in Reznor unit heaters, ventil... https://www.partshnc.com/reznor-96379-fan-blade