Shutter Mounted Hazardous Location Exhaust Fan, Assembled Assembled, Blade Diameter 18 in, Blade Material Aluminum, Control Type Toggle Switch, Drive Type Direct Drive, Duct Diameter Not Applicable, Exhaust Airflow @ 0.000 in SP 3, 200 cfm, For Cut-Out Height 21 in, For Cut-Out Width 21 in, For Maximum Wall Thickness 6 in, For Minimum Wall Thickness 6 in, Frame Finish Powder Coated, Frame Material Steel, Guard Finish Chrome, Guard Material Steel, Guard Type Intake. This item has been restricted from sale in the following state (s): []