Used 4771 Sq ft CS Fin Fan Heat Exchanger. Mfg Chart. Model H120. 4771 Sq ft (bare), 94955 Sq ft (extended). (309) 1.25" OD Tubes - 2-pass. Rated 150PSI/FV@470F. (3) 20HP Force D Fans Drawing 35742 lbs. National Board. Serial #49714. Built 2015. Past Use Air Cooled Condenser