Used 924 Sq Ft Doyle & Roth Horizontal Stainless Steel Shell & Tube Heat Exchanger. 304-SS Shell rated 75 psig @ 150 F, 304-SS Tubes rated 75 psig @ 125 F. (304) Tubes x 3/4" x 16 ga x 15'6" Lg. Mounted on 2 saddles. Serial #J2234, National Board #10049, Built 1979. Approx weight - 7,500 lbs. Previous Use: Ethylene Oxide.