Shutter Mount Exhaust Fan, Assembled Assembled, Blade Diameter 12 in, Blade Material Steel, Control Type Pull Chain, Drive Type Direct Drive, Duct Diameter Not Applicable, Exhaust Airflow @ 0.000 in SP 1,100 cfm, For Cut-Out Height 14 in, For Cut-Out Width 14 in, For Maximum Wall Thickness 5 in, For Minimum Wall Thickness 5 in, Frame Finish Powder Coated, Frame Material Steel, Guard Finish Powder Coated, Guard Material Steel, Guard Type Intake, Housing Material Steel.