Centrifugal Roof Supply Fan Mounting Location Roof Wheel Diameter 20 1/2 in Base Diameter Not Applicable Base Length 46 in Base Shape Square Base Width 46 in Maximum Airflow 14 948 cfm Minimum Airflow 5 202 cfm Maximum Motor Horsepower 10 hp Minimum Motor Horsepower 5 hp Minimum Motor Speed 642 RPM Maximum Motor Speed 804 RPM Maximum Static Pressure 2 in wc Number of Filters 2 Filter Housing Depth 36 in Filter Housing Height 43 3/4 in Filter Housing Width 41 1/8 in