58.87 sq. ft. vertical graphite cylindrical block heat exchanger. MFD by Carbone, type PBC8DL-5PU-1-6, Serial # 1119, built 1998. ASME code stamped, NB# 1308. Shell rated 185 psi @ 400 deg. F, tubes rated 100 psi @ FV @ -20/+400 deg. F. Shell 15" dia. x 90" long. 1 pass axial, 6 pass radial. Openings: tube side - 1-3", 1-2". Shell side - 1-3", 2-1 1/2".