Dayton Exhaust Fan - 36" - Belt-Drive - Pre-Owned
Belt-drive panel supply fans allow users to adjust the fans' blade speed and airflow. Belt-drive fans are better suited than direct-drive fans for high air flow (≥ 2000 cfm) or high static pressure (≥ 0.50") applications. Belts connect the fans' motors to their fan blades.
It's been tested and the blades work great. It is priced very low because you have to buy the motor separately.