Roll-off tanks from Consolidated Fabricators can be used with pumps, filters, dewatering units and vacuum boxes. Designed for on-site storage of water and liquids, the 8,500-gallon tank with 1/4-inch-thick walls measures 20 feet long, 8.5 feet wide and 95.5 inches high. With a roll-off under-frame, the tank has smooth interior walls, multiple valves and interior stainless steel ball float with exterior tank level gauge. 800/635-8335; www.con-fab.com.