"All-galvanized construction fan resists corrosion in high-humidity areas. Galvanized welded wire guard on intake and exhaust. Comes assembled and ready to install with prepunched holes for hanging. Truck ship. 3-year limited warranty. U.S.A. Thermal Overload Protection Yes, Amps 5.1, Volts 230, Blade Guard Included Yes, Fan Diameter in. 48, Style Box style, Material Type Galvanized construction, Motor 60 Hz totally enclosed air-over motor w/thermal protection, Blade Type 3-wing blade, Needs to be Hardwired No, Plug Type 3-prong molded plug, Speeds qty. 1, Air Delivery CFM 19,900, HP 1/2. Bolt-together design for easy part replacement Truck ship 3-year limited warranty U.S.A. Model PFG-4815D"