The TURBODISC 25 is designed to overcome cleaning problems created by narrow entry ports, difficult recesses and awkward to reach areas. It provides a dense, aggressive, 360 degree spray that is ideal for cleaning small vats, barrels, containers and tanks with limited access ports. Compact Size Fits through an opening as small as 1-1/8"/29mm. Self Operating Powered by the cleaning fluid. Operates in any position. Simple Design Only one moving part (the disc). No maintenance required. No Lubrication No lubrication is required because the disc is hydraulically balanced & lubricated by the cleaning fluid.