iLiving - Wall-Mounted Shutter Exhaust Fan With Thermostat Control Are you looking for a reliable way to reduce your cooling costs while keeping your home cooler and more comfortable year-round? If so, you’ve found just what you’re looking for! Made with top quality materials, craftsmanship and engineering, the iLiving Shutter Exhaust Fan is designed to offer superior ventilation in any space you choose to install to keep your living space cooler and more comfortable year-round while reducing expensive cooling bills. • Heavy-Duty, Galvanized Steel Frame. • Weather Resistant Aluminum Shutters and Blades. • Motion-Balanced for Quiet Operation. • Thermally Protected and Permanently Lubricated Motor. • Automatic Shutters. • For Home Cooling and Ventilation. • Corrosion-Resistant Wire Guards. • Variable Speed Setting Functionality With Built in Thermostat Control. • UL Listed. • Available in 8 Size Variations. Perfect Cooling and Ventilation Solution For : • Homes , • Attics , • Garages , • Sheds , • Regulating Room Temperature , • Reducing Cooling Costs , • And More. The fan comes fully assembled out of the box; easy installation when plugged into an approved electrical outlet. The shutter fan comes in 8 different sizes: 10 inches, 12 inches, 14 inches, 16 inches, 18 inches, 20 inches, 24 inches and 30 inches.