GAF Master Flow 1450 CFM Galvanized Electric Powered Gable Mount Fan in Mill (new)The GAF Master Flow CEGV5 Gable Mount Attic Ventilators are a great choice for exhaust ventilation. They are typically easier to install and won't detract from the appearance of your roof. They can quickly remove a larger volume of hot and or humid air from your attic, compared to static ventilation, which helps save money on your heating and cooling costs. The CEGV5, Power Gable Mount Vent can move air at a rate of up to 41. 06 cu. m. per minute. It