1266 Sq. Ft. vertical Shell & Tube Heat Exchanger. CS Shell rated 75 PSI/FV @ 450 F, SA789-SS (Duplex 2205) Tubes rated 75 PSI/FV @ 450F. (414) tubes 1" OD X 12'. Shell: 1 Pass; Tubes: 1 Pass. Manufactured by Krueger, Model #29-144, S/N: 95-0990, Type BEM, NB# 3127. Unit has expansion joint in shell.