Tune-Up Rebuilt Kit improves the drivetrain of the Polaris 3900 Sport cleaner. The kit comes pre-assembled for an easy set-up process. New removable and easy to replace metallic silver head float improves serviceability. Improved single side wheel design provides 140% increased strength over the previous model for superior operation. New base assembly constructed of abrasion resistant materials to reduce scuffing and keep the cleaner looking newer longer. Zodiac is a leading global manufacturer of differentiated pool and spa products. With our rich heritage of innovation excellence, we develop some of the worlds leading products that afford our customers a better life. Whether through our best in class products, or through our industry leading dealer loyalty program, Zodiac is the provider of choice for millions of people worldwide.