[Upgraded Version]Compared with the old version backup valve, our G52 backup valve replacement kit for Polaris has upgraded the shell material, high strength proprietary crack resistant polymer construction, will not be easily damaged, and has twice the life span.[]This complete replacement valve exactly works in the for Polaris models: 3900 Sport, 480 Pro, 280, 380, 180, E10, 280 TankTrax, Vac-Sweep 380, Vac-Sweep 280 pool cleaners and works with platinum cleaner[Durable G53 Gear Mechanism]Made of friction-resistant and stable material, it can work continuously under ultra-high water pressure, but if there is too much sand, the gear will be stuck. At this time, you need to remove the wheel to clean the sand for long-term working.[Function]This G52 back-up valve is designed to back the cleaner into any corner or edge of the pool when the pool cleaner is stuck on an obstruction. Without it, the cleaner will not have enough power to suck up dirt and debris from the pool surface. If the cleaner gets tangled in obstacles or edges or floats on top of the pool water, then it's time to consider checking or replacing the backup valve.[Small tips]No assembly required, you only need to connect this G52 rebuild kit to hoses tightly to make your for Polaris pool cleaner start running again perfectly.When the pool cleaner is stuck on obstacles or edges and is difficult to turn around, or even if the backup valve is still open, the water no longer sprays from the nozzle, then it is time to consider checking or replacing.Material:plasticcolour:WhitePackage Contents:1 x Pool Spare Valve2 x FiltersOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.