Ventamatic Economy Galvanized Steel Dome Power Roof Mount Attic Vent 1080 CFM cubic feet per minute economy roof mount attic exhaust ventilator. Galvanized steel construction. Suitable for 1600 sq ft square foot attic. 2.6A ampere thermally protected motor with built-in automatic cut-off. Includes 10A adjustable thermostat. Precision balanced aluminum fan blades for minimum vibration. 6-point suspensions anchor points for stability and high wind resistance. This fan requires minimum 600 sq in square inch net free area intake vent area. Suitable for up to 8/12 roof pitch. Includes galvanized steel mesh grills to protect against insects, birds, and rodents, yet allows adequate air intake. Easy installation with no special tools required. 2 year limited warranty on all parts. Airflow 1080 Cfm., Material Galvanized Steel, Color Brown, Recommended Square Feet 1600 Sq. Ft., Motor Size 2.6A, Roof Pitch Up to 8/12, Cut Out Diameter 17 In., Weight 18 Lb., Pkg Qty 1, Package Type Box WARNING This product can expose you to chemicals including Chromium which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information visit www.P65Warnings.ca.gov