Used 690 Sq. Ft. Stainless Steel Horizontal Shell and Tube Heat Exchanger. CS Shell Side rated 75 PSI @ 300 deg F; 304-SS Tubes rated 100 PSI @ 150 deg F. SS Tubesheets, CS Heads. 220 Tubes @ 3/4: dia. x 16' Long. Shell-1 pass, Tubes-2 pass. Shell inlet/outlet - 10". Tube inlet/outlet - 2". Mfg: Heat Exchangers Inc. Size 17-192, S/N: 128.