USED APPROXIMATELY 10,000 GALLON VERTICAL STAINLESS STEEL TANK. 12' DIAMETER X 12' STRAIGHT SIDE. WITH FLAT TOP AND BOTTOM HEADS. TOP INLETS: (4) 4.5" DIAMETER, (2) 2" DIAMETER, 20" X 20" MANWAY LID. SIDE BOTTOM OUTLETS: (1)6" DIAMETER, (1) 3" DIAMETER.