Used 1642 Sq Ft Vertical SS Heat Exchanger. CS Shell rated 175/FV PSI @ 400 Deg F. 304L-SS tubes rated 180 PSI @ 350 deg. F. Shell: 30" OD x 20' (22' 6" OAL). (392) 1" Tubes x 16' L. Nozzles: Shell - 10" in, 4" out: Tubes - 8" in, 24" out. Type AEL. Mfg by Killebrew Engineering, 1977, S/N: 32122, NB# 3621. Previous use: Column Reboiler. Approx weight: 12680 lbs.