Used 95 sq.ft. vertical shell & tube heat exchanger, Mfg. by Southern Heat Exchanger Corp, Type 10-96 BEU. 304L stainless steel shell rated for 150 psi @ 450 Deg. F. Hastelloy C-276 (SB-575 C276) tubes rated for 100 psi @ 450 Deg. F., (122) 3/4'' O.D. tubes. Serial # 90-163, National Board Stamped, Year Built: 1990, Previous Service: Multi-purpose, Estimated Weight 1000#