Uplast Exhauster Application Commercial Buildings Factories Offices Warehouses Drive Type Belt Drive Wheel Diameter 16 1/2 in Base Diameter Not Applicable Base Length 24 3/4 in Base Width 24 3/4 in Base Shape Square Maximum Static Pressure 2 1/4 in wc Maximum Airflow 3 600 cfm Minimum Airflow 2 400 cfm Maximum Motor Horsepower 2 hp Minimum Motor Horsepower 1/4 hp Maximum Motor Speed 1 800 RPM Minimum Motor Speed 1 800 RPM Assembly Unassembled Housing Material Aluminum