Air Vent 18 in. H X 17.8 in. W X 7.3 in. L X 15 in. D Steel Gable Mount Power Fan

Installed in the gable end of the house, the Gable-mount power Vent uses a thermostat to help prevent heat buildup and a humidistat (Plus models only) to fight moisture buildup inside the attic. It operates 30 percent more quietly than comparable units.