Tank is 6' 6" high open top by approx 7' 4" diameter and is fiberglass construction. Manufactured by raven industries, souix falls, sd. 2000 gallon capacity. Designed for 1.3 specific gravity at ambient temperature. Typical s/n-g6-4641. Tank liner construction is vinyl ester. Structure is isophthalic polyester centrifically cast design. Tank is open top with three inch rolled angle flange on top. Previous service was used in mixing of starch.