The Carrier LA01RA044 is a 22-inch diameter fan with a 24-degree pitch, 1/2-inch clockwise rotation, and three blades that are essential for proper airflow in HVAC systems. This fan works by effectively drawing air through the system, promoting circulation and facilitating heat exchange processes. https://www.partshnc.com/la01ra044-carrier-22-dia-24deg-12-cw-3bld-fan