Centrifugal Upblast Roof Exhaust Fan, Application Industrial and Commercial Buildings, Restaurants, Schools, Drive Type Belt Drive, Wheel Diameter 11 1/4 in, Base Diameter Not Applicable, Base Length 22 in, Base Width 22 in, Base Shape Square, Maximum Static Pressure 2 1/2 in wc, Maximum Airflow 1, 014 cfm, Minimum Airflow 323 cfm, Maximum Motor Horsepower 1/2 hp, Minimum Motor Horsepower 1/4 hp, Maximum Motor Speed 2, 580 RPM, Minimum Motor Speed 2, 045 RPM, Assembly Unassembled. This item has been restricted from sale in the following state (s): []