Centrifugal Upblast Exhaust Fan Application Foundries Industrial and Commercial Buildings Laboratories Manufacturing Facilities Non-Tempered Kitchen Make-Up Air Restaurants Schools Drive Type Belt Drive Wheel Diameter 11 3/8 in Base Diameter Not Applicable Base Length 22 in Base Width 22 in Base Shape Square Maximum Static Pressure 2 1/2 in wg Maximum Airflow 1 014 cfm Minimum Airflow 323 cfm Maximum Motor Horsepower 1/4 hp Minimum Motor Horsepower 1/2 hp