The Trane FAN4078 is an HVAC workhorse that was built primarily for commercial and industrial applications. The Trane FAN4078 29-inch diameter fan has three strong blades and a 5/8-inch shaft for a solid motor connection. The Trane FAN4078 turns clockwise CW and has a 23-degree blade angle, which efficiently directs airflow throughout your system. #Trane #FAN4078 #3BladeFan #Tranep... https://www.partshnc.com/29dia-3bld-58-cw-23deg-fan-5