The 4-Wheel Suction PoolCleaner™ uses your existing pump and filter for power. Simply plug it into your designated suction port or the skimmer. It is best suited for larger pools. All PoolCleaner™ models have patented self-adjusting turbine vanes. The flexible vanes ensure maximum power at virtually any flow. Their ability to move allows easy passage of large debris to ensure full cleaning with peace of mind. The PoolCleaner™ has multiple pre-programmed internal steering sequences, which cause the left wheel to periodically reverse, allowing The PoolCleaner™ to turn and then move into another direction. This feature ensures full pool coverage and efficient cleaning.