Used 1779 Sq Ft Roark Enterprises Horizontal Stainless Steel Shell & Tube Heat Exchanger. CS Shell rated 75 psig @ 135 F and -25 F @ 75 psig; 32 1/8" ID x 15' 7 5/8". 304-SS Tubes rated 225 psig @ 245 F. (580) tubes x 0.750" x 16 ga x 15' 7 5/8" L. Serial #00-1431, National Board #778, Built 2000. Estimated Weight--12,650#. Previous Use: Ethylene Oxide.