It’s quality that makes Onga a leading automatic pool cleaner company. The Onga Hammerhead pool cleaner is the ultimate in carefree operation. It comes fully assembled. Just add the seal and connect the hoses. No tools required and you’re on cruise control in minutes. The Onga Hammerhead is the most popular pool cleaner in the Onga range and has been a favourite of the Australian pool builders for years. This is a very reliable backward moving pool hammer style pool cleaner best suited to free form in-ground pools. It even comes with a free flow gauge and adjustable speed control to ensure optimum performance.