Used 334 Sq ft Doyle and Roth 304 Stainless Steel Horizontal Shell and Tube Heat Exchanger. (120) .75"D x 10' tubes rated 180PSI/FV @ 350F. Shell Rated 220 PSI/FV @350F. Approximately 47" OAH x 137" OAL. Weight 2,500 lbs. Serial #S2766-2. National Board #21571. Built 2015. Last used Syngas Trim Cooler.