Get current pricing for Hartzell Fan Inc, 052-19-AHL3 Hartzell Fan Inc Centrifugal Fan. Model 052-19-ahl3. Blower Has Up To An Estimated 3000 Cfm. Blower Has An 11 Diameter Inlet And A 9 X 10.5 Outlet. . Product Category: Process Equipment, Sub Category: Process Blowers: