Upblast Ventilator Application Foundries Industrial and Commercial Buildings Laboratories Manufacturing Facilities Non-Tempered Kitchen Make-Up Air Restaurants Schools Drive Type Belt Drive Wheel Diameter 18 1/2 in Base Diameter Not Applicable Base Length 30 in Base Width 30 in Base Shape Square Maximum Static Pressure 2 1/4 in wc Maximum Airflow 5 648 cfm Minimum Airflow 1 763 cfm Maximum Motor Horsepower Not Applicable Minimum Motor Horsepower 1/4 hp