King High Velocity Industrial Belt Drive Drum Fans were specifically designed for industrial applications where quality, performance, and durability are required. Rugged and reliable, they make less noise and use a lower power load, which gives the fans motor a longer life. The 2-speed, belt drive fan has 4 aerodynamically balanced aluminum blades for even, steady airflow and to provide maximum airflow and motor efficiency. The scratch-resistant King green finish looks sharp and is easy to clean. Rugged flat-free wheels with metal hubs last for years and roll easily over uneven surfaces. Cord wrap for convenient storage. UL listed.