Super Duty Fans are an innovative new line of industrial ceiling and floor fans designed to efficiently circulate air, providing exceptional cooling and durability combined with simple installation. The fans employ a specially designed shroud to improve airflow. Guards protect the fans from impact and the flexible quad-strap mounting system allow the fans to be easily installed at any angle. Both single speed and variable speed models are available to meet your specific needs. Super Duty is the choice for tough, high performancethe fans at reasonable price.