Impeller replacement for Polaris booster pump PB4-60, part number P-15. Genuine Polaris factory part. Part #4 in below diagram. WE ARE AN EXPERIENCED POLARIS DEALER!\n ----------\nZodiac Swimming Pool Systems and Products have proven over and over to be among the leaders in the industry for all types of applications. By using only the highest-quality materials and manufacturing, customers can be assured that they are receiving only the best products. Our best-in-class consumer products are the #1 choice for millions of pool owners and professionals worldwide, and with our expansive product line, we deliver the most technologically advanced, energy-efficient, durable, and reliable pool and spa products available on the market.