Used Wm. D. Nichols Storage Tank, 6,000 Gallon, 316 Stainless Steel, Vertical. 114" Diameter x 144" Straight side, slight cone top, flat bottom. Openings top: (2) 3", 6", side: 24" with cover (missing bolts), 6", 3", 2", (4) 2" threaded. 3" Side bottom outlet. PO#9707-5390.