30 In. 2-Speed Direct Drive Whole House Fan with Shutter Material_Steel making it far more reliable

making it far more reliable and long-lasting for use in barns

and screws and locking nuts to successfully assemble and replace your existing exhaust fan or power attic fan blade assembly

exlcuding PRO units

significantly extending the fan's life in dusty agricultural settings

This exterior shutter automatically opens and closes when the attic fan turns on and off and helps to shield your attic space from the elements when the gable fan is not in use

30 In. 2-Speed Direct Drive Whole House Fan with Shutter Material_Steel making it far more reliableHigh volume home ventilation delivering up to 4,425 CFM of powerful airflow to refresh large residential spaces with 2,000 to 3,000 sq. ft. attics, significantly reducing A C dependency Automatic ceiling shutter that seamlessly opens during operation and provides a 95%+ tight air seal in winter to prevent heat loss Built with a heavy duty steel venturi, aluminum fan blades, and a 2 speed motor designed for quiet, low vibration operation Joist in or