Tubeaxial Fan Drive Type Belt Drive Includes Drive Package Yes Includes Motor Yes Blade Diameter 30 in Nameplate Voltage 115/208-230V AC Phase 1 Motor Horsepower 2 hp Airflow @ 0.000 in SP 12 190 cfm Maximum Noise Level @ 5 Feet 41 sones Assembly Unassembled For Air Type Corrosive Vapor Blade Material Stainless Steel Housing Material Stainless Steel Number of Blades 6 Number of Speeds 1 Motor Enclosure Totally Enclosed Fan Cooled Standards AMCA Bolt Circle Diameter 32 1/4 in