"Industrial grade fan is perfect for shop or garage. Quiet 120V motor is reversible and generates 21,000 CFM for complete air circulation. Air Delivery CFM 21,000, Blade Type Straight, Blades qty. 3, Color White, Fan Diameter in. 56, Amps 9, Blade Material Aluminum, Speed RPM 320, Speeds qty. Single, Volts 120, Power Cord ft. 4, Finish Type Epoxy paint. Fully assembled except blade bolt Recommended for use with Item# 255325 reversible variable speed control 3-year limited warranty Model IHR-56R"