Used 854 Sq Ft Horizontal SS U-Tube Heat Exchanger. 304L-SS Shell rated 200 PSI @ 300 Deg F. 304L-SS tubes rated 180 PSI @ 400 deg. F. Shell: 18" OD x 17' L (OAL - 18' 8"). (100-U's) 1" dia tubes X 16' L. Passes: Shell- 1, Tubes - 4. Nozzles: Shell - (2) 6", Tubes - (2) 4". Built by Killebrew Engineering, 1977, S/N: 32115, NB# 3616. Type BEU. Previous use: Ammonia Cooler. Approx weight: 7120 lbs.