G52 Backup Valve Replacement for Polaris Pool Cleaner Upgrade your Polaris pool cleaner with the G52 Backup Valve Replacement, designed to be compatible with Polaris models 180, 280, 380, 480, and 3900. This high-quality valve body is reinforced for enhanced durability, ensuring a longer lifespan compared to the Zodiac G52. Features: - Compatibility: The Makhoon backup valve is compatible with Zodiac Polaris models including 180, 280, 380, 480 PRO, 3900 Sport, Vac-Sweep 380, Vac-Sweep 280, and 280 TankTrax, as well as Pentair E10. - New Upgrade: Our upgraded backup valve features a new shell material made from a crack-resistant polymer blend, offering superior wear resistance and durability. This means it is less likely to be damaged and has twice the lifespan of previous models. - G53 Gear Mechanism: The gear mechanism is crafted from friction-resistant and stable POM material, which has a low coefficient of friction and excellent geometric stability. This makes it ideal for high water pressure operations, ensuring reliable performance. - Functionality: The upgraded version effectively addresses the issue of your pool cleaner getting stuck on obstacles. Even when the backup valve is open, water will no longer spray from the nozzle, helping to keep your pool cleaner functioning smoothly.