Agricultural Exhaust Fan, Assembled Assembled, Blade Diameter 36 in, Blade Material Steel, Drive Type Direct Drive, Exhaust Airflow @ 0.000 in SP 10,770 cfm, For -Out Height 43 in, For -Out Width 40 7/8 in, For Maximum Wall Thickness 8 in, For Minimum Wall Thickness 6 in, Frame Finish Galvanized, Frame Material Steel, Guard Finish Zinc Plated, Guard Material Steel, Guard Type Exhaust, Housing Material Steel, Housing Finish Galvanized, Includes Mesh Screen, Includes Dehumidistat No