"TPI industrial grade fan is perfect for shop or garage. Quiet 120V motor is reversible and generates 21,000 CFM for complete air circulation. Blade Material Aluminum, Speed RPM 320, Volts 120, Blades qty. 3, Fan Diameter in. 56, Color White, Power Cord ft. 4, Blade Type Straight, Air Delivery CFM 21,000, Amps 0.9, Finish Type Epoxy paint, Speeds qty. Single. Fully assembled except blade bolt Recommended for use with Item# 255325 reversible variable speed control Motor is reversible All metal construction White epoxy finish 24in. down rod with safety cable Mounts to 3/8in. diameter steel J-hook 18 pole motor 120V 1 Phase, capacitor type, impedance protected motor with sealed ball bearings Permanently lubricated 21,000 CFM 310 RPM 0.55 Amps 3 conductor cord 30in. long with plug"