Used Heatran approximately 770 sq ft vertical stainless steel heat exchanger

Used Heatran approximately 770 sq ft vertical stainless steel heat exchanger 26" diameter X 12' face to face length. Carbon Steel Shell rated 75 PSI @ 325 degrees F. (200) 1.25" stainless steel tubes rated 75 PSI @ 325 degrees F. S/N 2757. Weight 3600#.