Used 5115 Sq Ft Vertical SS Heat Exchanger. CS Shell rated 180/FV PSI @ 400 Deg F. 304L-SS tubes rated 180 PSI @ 400 deg. F. Shell: 49" OD x 23' 4" (OAL - 25'). (1221) 1" Tubes x 16' L. Nozzles: Shell - 10" in, 4" out: Tubes - 20" in, 30" out. Type AEL. Mfg by Killebrew Engineering, 1977, S/N: 32110, NB# Stamped. Previous use: Column Reboiler. Approx weight: 32,160 lbs.