2339-CFM, 120-Volt Variable-Speed Electric Exhaust Gable Fan with Thermospeed Controller and Speed Controller, Silver. Wall Mounted Variable Speed Gable Exhaust Fan with thermostat control for Greenhouse, Attics, Workshop, 2339 CFM, Coverage 3400 sq. Gable ventilator exhaust fan is designed to move large volumes of air, ideal for home, factories, warehouses, attics, greenhouse, barn and auto shops. The fan speed is adjustable with Thermospeed Controller, Range from 2339 CFM - 600 CFM, allowing you to adjust the air circulation to your desired power, while still being cost and energy efficient, using only 230-Watt at maximum speed.Thermospeed Controller can be set to automatically regulate temperature. This fan has a 4-blade steel propeller. The fan housing is constructed of heavy-duty galvanized steel with powder-coated finish. Motor RPM: 1010, Operating Amps: 2.85 Amp. Industrial Applications, Partially Assembled, Auto Thermal Protection, Shaded Pole Motor Type, 15 in. Cord, NEMA plug 5-15P, 4 Steel Blades, Steel Housing, 4 Mounting Brackets, Standards: UL USA and Canada. Powerful air ventilator - 2339 CFM, 120-Volt, 2.85 Amp, 1/8 horse power, 1010 RPM, coverage up to 3400 sq. Speed and thermal control - variable speed and temperature regulation control using ThermoSpeed controller, range 600 - 2339 CFM, temperature control range 32°F - 130°F. Build to last - industrial grade galvanized steel housing, reliable direct drive motor, variable speed, UL certified, noise level is less than 60 dBA. /minutes, ideal exhaust ventilator for garage, attic, greenhouse, and workshop.