Supply Fan Assembled Unassembled Blade Diameter 24 in Blade Material Steel Frame Material Steel For Maximum Motor Horsepower 3/4 hp For Maximum Motor Speed 1 352 RPM For Minimum Motor Horsepower 1/4 hp For Minimum Motor Speed 923 RPM Maximum Airflow 7 069 cfm Maximum Static Pressure 0.75 in wg Minimum Airflow 4 826 cfm For Cut-Out Height 26 1/2 in For Cut-Out Width 26 1/2 in For Cut-Out Diameter 26 1/2 in Guard Type None Method of Construction Stamped Number of Blades 6