Product introduction: High quality replacement parts Product adaptation model: This shutter exhaust fan is designed to help remove excess heat and moisture, keeps your living space cooler and more comfortable year-round. Widely use in home attic, workshops, welding rooms, factories, warehouses, barns, and greenhouses. Ventilation exhaust fan runs 1590 rpm with an airflow of 1950 CFM on high. Produces stronger and more powerful airflow Package: 1×12 Inch Shutter Exhaust Fan W/ Product Instruction .
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