Come to Grainger when you need a durable inline duct blower. You'll find a large selection of square centrifugal inline blowers with and without drive packages, featuring wheel sizes ranging from 8-1/8" dia. to 42-1/2" dia. Find the voltage and horsepower that can help deliver the exhaust and ventilation power you need, or choose an inline duct blower without drive package. The choice is yours when you shop Grainger.