Photo 1 of Criditpid 12 Inch Shutter Exhaust Fan, 970 CFM Wall Mounted Fan, Attic Vent Fan with Speed Controller and Thermostat for Greenhouse, Garages, Warehouse, Shed, Basement, Chicken Coops Ventilation.

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Photo 1 of Criditpid 12 Inch Shutter Exhaust Fan, 970 CFM Wall Mounted Fan, Attic Vent Fan with Speed Controller and Thermostat for Greenhouse, Garages, Warehouse, Shed, Basement, Chicken Coops Ventilation.Photo 2 of Criditpid 12 Inch Shutter Exhaust Fan, 970 CFM Wall Mounted Fan, Attic Vent Fan with Speed Controller and Thermostat for Greenhouse, Garages, Warehouse, Shed, Basement, Chicken Coops Ventilation.