Shutter Mounted Hazardous Location Exhaust Fan Assembled Assembled Blade Diameter 16 in Blade Material Aluminum Control Type Rotary Dial Drive Type Direct Drive Duct Diameter Not Applicable Exhaust Airflow @ 0.000 in SP 2 580 cfm For Cut-Out Height 17 in For Cut-Out Width 17 in For Maximum Wall Thickness 5 in For Minimum Wall Thickness 5 in Frame Finish Powder Coated Frame Material Aluminum Guard Finish Chrome Guard Material Steel Guard Type Intake