"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. Amps 2.71/2.44/1.22, HP 1/2, Material Type Galvanized construction, White powder-coat finish, Volts 230/460, Speeds qty. 1, Needs to be Hardwired Yes, Blade Guard Included Hinged open front guard, Style Basket, Air Delivery CFM 14,000, Blade Type 3-wing, Dimensions L x W x H in. 39 x 16 x 39, Fan Diameter in. 36, Motor 3-phase, direct drive. Patented design throws air farther and makes it easier to maintain Hot dip galvanized steel ceiling mount bracket"