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 13 1/2 in Base Diameter Not Applicable Base Length 19 in Base Width 19 in Base Shape Square Maximum Static Pressure 1 1/2 in wg Maximum Airflow 2 037 cfm Minimum Airflow 968 cfm Maximum Motor Horsepower 1/4 hp Minimum Motor Horsepower 1/2 hp