With the most vacuum power of any Polaris pressure cleaner, the Polaris P39 supplements the pool’s filtration system by circulating an additional 40 gallons of water per minute through its filter bag to distribute clean, filtered water throughout all areas of the pool. The result is more even temperature throughout the pool, and a cleaner, clearer body of water in less time. The Polaris P39 features an all-wheel PosiDrive system with durable stainless steel drive chain that delivers 50% more torque for maximum speed and performance. And, it is equipped with a dual-chamber zippered SuperBag that picks up and stores more debris for easy, less frequent cleaning. Additionally, the Polaris P39 comes equipped with TailSweep PRO; an advanced sweep hose enhancement that blows debris out of corners and hard to reach places, while also keeping water from spraying outside the pool. No more wet windows or walkways! With TailSweep PRO and three bonus Sweep Hose Scrubbers, the Polaris P39 provides power, performance and value.