60 sq. ft. vertical Hastelloy B@ tubes, tube sheets, heads, steel shell heat exchanger. MFD by Hebler, type BEM, size 8x72, Serial # H2669, NB# 7135, built 1998. ASME code stamped for 200 psi & FV @ 350/-20 deg. F on shell side, 100 psi & FV @ 300/-20 deg. F on tube side. Shell 8 5/8" OD x 6' long. Single pass design. With 12 baffles on shell. With (55) 3/4" OD x 0.065" BWG x 6' long Hastelloy B2 tubes at 0.9375" triangular pitch and 30 degrees layout. Openings: Head - 1-1", 1-8" at 90 deg. on side; head 1-3", 1-4" at 90 degrees on side; shell 2-2" at 180 degrees opposite sides. Mounting lugs.