ACME Engineering and Manufacturing Corporation Centri Master 2100 Series In-line Horizontal Airflow Centrifugal Fan with airfoil blading. Model M698390-2154; Serial Number 13B15743. Class 2, Arrengement 9H. Belt Drive, Round Duct, with 60 HP 208-230-460-3-60 motor. Approximately 99" Long x 92" wide x 120" high. Weight, skidded is 4,285 pounds. Test run video available.