Agricultural Exhaust Fan, Direct Drive, Preassembled, Adjustable Speed, Propeller Dia 24 In, CFM @ 0.000-In SP 6720, CFM/Watt @ 0.000-In SP 10.1, Fan RPM 1600, Voltage 120, 60 Hz, Single Phase, Full Load Amps 6.2, Height 36 In, Width 36 In, Max. Depth 30 In, Max Ambient Temp 140 F, Frame Material Aluminum, Includes Fan, Housing, Wire Guard and Shutter Direct-Drive Harsh Environment Adjustable-Speed Exhaust FansWall mount 1-phase totally enclosed motors with automatic thermal protection Permanently lubricated ball bearings Max. ambient: 140 F Polypropylene propellers Shipped assembled and ready to installSystem 4Aerodynamic housing funnel encourages free air flow. Designed to project a minimum of 12" outside of building; condensation flows down and away from building wall. Complete with fan, housing, wire guard, and shutter. For animal confinement buildings, manufacturing plants, warehouses, greenhouses, and other air exhaust applications.CSA Certified.Motors have cast aluminum housing and Class F insulation Outer fan housing is corrosion-free, UV-treated polyethylene