Recognized as a Smart Buy by the pool and hot tub care online publication Swim University, the Polaris 3900 Sport hosts a wide arrange of innovative features. A stainless steel chain drive serves to maximize the speed and performance of the Polaris 3900 Sport, through a 50% increase in torque. With the addition of a dual chambered 5 liter SuperBag, Polaris 3900 Sport can carry more debris than ever before and makes vacuuming your pool a quick and less frequent task. Velcro seals the filter bag shut, preventing any debris from returning into the pool again and the 3 jet system allows debris to be collected into the SuperBag efficiently via a water vortex. Furthermore, the filtration system in your pool gets the added bonus of Polaris 3900 Sport’s filter bag recirculating an additional 40 gallons a minute. Any concerns about the pool cleaner getting stuck are gone with Polaris 3900 Sport’s auto-reverse system, freeing itself from such annoyances. What’s more, Polaris 3900 Sport’s tail hose advancement TailSweep PRO also prevents any pool water displacement and effectively removes contaminants from those hard to reach places and corners that often remain untouched. Along with the PB4-60 booster pump, the Polaris 3900 Sport’s capabilities allows it to be the universal pool cleaner for all in-ground pool owners.