Get current pricing for Omni, Omni-Fab 6500 Gal St Used 6,500 Gallon 304 Stainless Steel, Jacketed Tank. Jacket On Bottom Third Of Tank, Rated 50 Psi @ 300 Deg F. 7', 7 Diameter X 19 Straight Side. . Product Category: Process Equipment, Sub Category: Process Tanks/kettles: