Used Tranter Superchanger Plate Heat Exchanger, Model GCP-060-M-5-UP-114, 663.06 Square Feet. Approximate (114) 316 Stainless steel plates, rated 150 psi at -20 to 250 degrees F. (4) 8" Inlet/outlets, mounted on expandable carbon steel frame, built 2005, Serial# SK 704.