Used 5969 Sq Ft Vertical SS Heat Exchanger. CS Shell rated 75/FV PSI @ 350 Deg F. 304L-SS tubes rated 75 PSI @ 300 deg. F. Shell: 53" OD x 23' 6" (OAL - 24' 6"). (1425) 1" Tubes x 16' L. Nozzles: Shell - 12" in, 4" out: Tubes - 12" in, 4" out. Type AEL. Mfg by Killebrew Engineering, 1977, S/N: 32112, NB# 3644. Previous use: Column Reboiler. Approx weight: 33,840 lbs.