Used 204 Sq Ft Horizontal SS U-Tube Heat Exchanger. CS Shell rated 175 PSI @ 400 Deg F. 304L-SS tubes rated 300 PSI @ 400 deg. F. Shell: 12.75" OD x 17' 2" (OAL - 18' 2"). (24 U's) 1" Tubes x 15' 5" L. Passes: Shell - 1, Tubes - 6. Nozzles: Shell - 3" in, 2" out: Tubes - (2) 2". Type BEU. Mfg by Killebrew Engineering, 1977, S/N: 32120, NB# 3619. Mounting Feet. Previous use: Column Preheater. Approx weight: 1,870 lbs.