150 sq ft Doyle and Roth horizontal heat exchanger. All T-316 stainless steel . 14'' diameter x 8' long straight side. NB# 18224. Shell rated 75 psi @ 350*F. Tubes rated 75 psi @ 350*F. Mounted on short saddles. Single pass design. Built 1998. (100) 3/4 diameter tubes. Fittings: (2) 2 and (2) 6 flanges.