This high-quality fan is designed to provide efficient and reliable performance for HVAC systems. With a diameter of 23 inches and a blade angle of 26 degrees, it is optimized for maximum airflow and energy efficiency. The fan rotates counterclockwise on a 1/2 inch shaft, and features three blades that are precision-engineered for optimal balance and durability. Whether you're installing a new system or replacing an old fan, this Trane product is an excellent choice for HVAC service technicians who demand the best in quality and performance.