Used 19,000 Gal William Grant Carbon Steel Tank. Rated 2.5 psig @ 150F. Wall .25" thick. Design specific gravity of .728. Flat bottom and cone top. Supported by bottom head. Single row of internal bottom heating coils. 12'0" ID x 23'6" T/T . Estimated weight 13,000 lbs. API-650 coded. S/N # 1653. Built 2015.