Used 10000 Gallon Alloy Fab Pressure Tank. 316 Stainless Steel, Vertical. Approximate 120" diameter x 186" straight side. Dished top and bottom heads. Internal rated 45 psi at 168 degrees F. Openings top: 24" man way with cover, (6) 4". 18" Center bottom outlet. Mounted on (6) carbon steel legs. National Board# 951. Built 1987.