"This recirculation fan is a great choice for dairy, hog or poultry barns, factory workstations, loading docks, machine/compressor cooling or any other place that would benefit from good airflow. Air de-stratification can reduce heating and cooling bills and reduce heat stress in both animals and people, helping to increase production. U.S.A. Dimensions L x W x H in. 39 x 16 x 39, Needs to be Hardwired Yes, Speeds qty. 1, Style Basket style, Amps 2.71/2.44/1.22, HP 1/2, Material Type White powder-coat galvanized construction, Fan Diameter in. 36, Air Delivery CFM 14,000, Blade Type 3-wing galvanized steel blade, Motor 3-phase direct drive motor, Volts 230/460, Blade Guard Included Hinged open front guard. Patented design throws air farther and makes it easier to maintain Hot dip galvanized steel ceiling mount bracket"