Used 41 sq.ft. horizontal shell & tube heat exchanger, Mfg. by Monticello Tank Inc. 316L stainless steel shell rated for 100 psi @ 450 Deg. F., 316L stainless steel tubes rated for 100 psi @ 450 Deg. F. Shell diameter 10.75" O.D., TEMAC BEU-10-96. Serial #T10185E, National Board #5012, Built 1990. Previous Service: Reactor Condenser - Multi-purpose, Estimated Weight: 700#