Used 1728 Sq Ft Roark Enterprises Carbon Steel Horizontal Tank. Dimensions: 4' ID x 18' St. Side w/ Dished Heads and mounted on 2 saddles. Tank rated 165 psi @ 260 F, Shell Material SA-516-70, 0.375" thick. Serial #84072, National Board #3, Built 1984. Estimated Weight -- 5400#. Previous Use: Ethylene Oxide.