Used 297 Sq. Ft. vertical stainless steel Shell & Tube Heat Exchanger. 304-SS Shell rated 75 PSI @ 200 deg F, SA268-XM27 SS Tubes rated 75 PSI @ 350 deg F. 316-SS Heads. Shell: 13" ID x 13'8".OAL: 14' 11". (126) tubes 3/4" OD x approx 12'. Shell Nozzles: (2) 6", 3"; Tubes: (2) 3", 2". Mfr: Perry Products, Model B-4051, 1986, NB # 3471. Type BEM.