Agricultural Exhaust Fan Assembled Unassembled Blade Diameter 36 in Blade Material Steel Frame Material Steel For Maximum Motor Horsepower 3/4 hp For Maximum Motor Speed 1 725 RPM For Minimum Motor Horsepower 3/4 hp For Minimum Motor Speed 700 RPM Maximum Airflow 11 598 cfm Maximum Static Pressure 0.3 in wg Minimum Airflow 11 000 cfm For Cut-Out Height 41 in For Cut-Out Width 41 in Guard Type Intake Number of Blades 4 Includes Motor No Overall Depth 14 in