LC Dynafan units are completely self contained packaged exhaust systems. Direct drive units are effective at providing a quiet steady exhaust at moderate resistance. Belt driven LC Dynafans offer a wide range of sizes. Units are low and inconspicuous, with a unique design that features motor mounting beside the wheel rather than atop the wheel.Click here for more product information: https://www.pennbarry.com/Catalog%20Home/Commercial/Commercial%20Centri…