Uplast Exhauster Application Commercial Buildings Factories Offices Warehouses Drive Type Belt Drive Wheel Diameter 13 1/2 in Base Diameter Not Applicable Base Length 21 in Base Width 21 in Base Shape Square Maximum Static Pressure 1 1/2 in wc Maximum Airflow 2 009 cfm Minimum Airflow 1 400 cfm Maximum Motor Horsepower 3/4 hp Minimum Motor Horsepower 1/4 hp Maximum Motor Speed 1 800 RPM Minimum Motor Speed 1 800 RPM Assembly Unassembled Housing Material Aluminum