Used 11 Square Feet Futura Titanium Corp. Horizontal Shell & Tube Exchanger. Titanium (Gr. 2) Tubes: 100PSI @ 200 deg F; Carbon Steel Shell: 75 PSI @ 175 deg F. Serial #5079. NB# 123. Built 1978. (8) Tubes, .75" x 7' Length. Shell dia. 4.5", 100" OAL. Shell -1 pass, Tube - 1 pass. Nozzles: Shell side: (2) 2"; (1) .75". Tube side: (2) 2".