Hayward Poolvergnuegen 4-Wheel Suction PoolCleaner uses your existing pool pump and filter for power—simply plug it into the designated suction port or the skimmer for quick an easy setup. Featuring patented self-adjusting turbine vanes, PoolCleaner delivers maximum power at any flow and allows passage of larger, more stubborn debris. Patented tire treads enhance climbing ability and obstacle maneuverability while patented adjustable roller skirts allow the cleaner to maintain optimal suction on uneven surfaces and when encountering obstacles. Multiple pre-programmed internal steering sequences ensure complete pool coverage—PoolCleaner travels 11 - 14 feet before turning, and turns can range from 90 to 540 degrees. For larger pools or pools with deep ends up to 20 x 40 ft., the 4-wheel Poolvergnuegen PoolCleaner is a powerful, efficient choice