Centrifugal Upblast Roof Exhaust Fan Application Industrial and Commercial Buildings Restaurants Schools Drive Type Belt Drive Wheel Diameter 30 1/2 in Base Diameter Not Applicable Base Length 42 in Base Width 42 in Base Shape Square Maximum Static Pressure 2 in wc Maximum Airflow 14 727 cfm Minimum Airflow 4 464 cfm Maximum Motor Horsepower 5 hp Minimum Motor Horsepower 1/3 hp Maximum Motor Speed 905 RPM Minimum Motor Speed 365 RPM Assembly Unassembled