Used- Quality Containment Co. 900 Gallon Tank. 304 Stainless Steel, Vertical. Approximately 54" diameter x 84" straight side, elliptical 2:1 top and bottom heads. Internal rated 45 psi at -20 to 105 degrees F. Openings: (1) 18" manway with cover, (2) 4", (2) 3", (2) 2", (1) 1/2", side: 6" sight glass. Approximate 4" bottom outle more info...