UNUSED Gaspar Inc. approximately 508 square foot Shell and Tube Heat Exchanger. 18” diameter X 11’ 2” face to face length. Carbon steel shell rated 242 PSI @ -20 to 500 degrees F. (232) 3/4" S31803 Duplex stainless steel tubes rated 183 PSI @ -20 to 450 degrees F. Has carbon steel tubesheets. National Board# 2783, S/N 37189. 4” Process, 3” Service nozzles. Built 2010.