Can-Fan Max Fan 10 in 1019 CFM The Max-Fan® is the first fan that has been developed with a Computational Fluid Dynamics (CFD) program. CFD's are used for engineering air craft propulsion engines. The perfectly designed 3D blades of the impeller and stator make this fan extremely powerful and energy efficient. Compared with other inline fans the efficiency is 50% - 100% higher. 6 in - 14 in come pre-wired with a... — Ships from H: WA, CA, CO, MI, TN, PA, FL USA....more info.