Tubeaxial Fan Blade Diameter 24 in Maximum Motor Horsepower 3 hp Minimum Motor Horsepower 1/2 hp Maximum Motor Speed 1 910 RPM Minimum Motor Speed 1 062 RPM Maximum Airflow 10 310 cfm Minimum Airflow 5 730 cfm Maximum Static Pressure 3/4 in wc For Air Type Corrosive Vapor Assembly Unassembled Blade Material Stainless Steel Housing Material Stainless Steel Number of Blades 6 Standards AMCA Sound and Air Bolt Circle Diameter 25 3/4 in Includes Drive Package No Includes Motor No