Air Vent 18-in Dia Electric Gable Vent Fan

Gable-mount power fans are a type of motor-driven attic exhaust vent that make up half of a balanced attic ventilation system for each roof. Intake vents make up the other half of the system. Together they help remove any built-up heat and moisture inside the attic for year-round ventilation. Use the Lowe's calculator to correctly size the gable-mount power fan for the attic. UL Listed with thermal overload protection 1620 CFM ventilate up to 2300 sq ft 30% quieter and 35% more efficient than comparable units Adjustable thermostat/humidistat Fan blade is encased in a patented innovative series of rings Shutter sold separately CA Residents: Prop 65 WARNING(S)