UNUSED Gaspar Inc. approximately 12 square foot Shell and Tube Heat Exchanger. 6” diameter X 3’ 3” face to face length. Carbon steel shell rated 189 PSI @ -20 to 400 degrees F. (19) 3/4” 316L stainless steel tubes rated 183 PSI @ -20 to 450 degrees F. National Board# 2754, S/N 37194. 2” Process, 2” Service nozzles. 3” Vent. Built 2010.