Improved G52 pressure relief valve as a replacement for Zodiac 180, 280, 380, 480, 3900 and Polaris pool cleaners. Replacement parts for Polaris backflow preventers.

[PERFECT FIT]: The G52 Polaris check valve replacement kit is exactly compatible with the Zodiac Polaris models 180, 280, 380, 480 PRO, 3900 Sport, Vac-Sweep 380, Vac-Sweep 280, and 280 TankTrax. It won't jam. [IMPROVED QUALITY]: The new G53 mechanism for the Polaris 280 check valve is made from an improved blend of crack-resistant polymers that are more abrasion-resistant and less prone to damage. It functions reliably even under extremely high water pressure. NOTE: If the gears become stuck in the sand, you will need to remove the grinding wheel, clear the sand, and continue working.

[EASY OPERATION]: No assembly required. The G52 emergency valve is ready to use right out of the box. Simply connect the fittings and hoses securely to put it into operation. It opens every 3 minutes for 30 seconds to remove the cleaner by reversing the cleaning direction. This valve can also pull the unit out of tight spaces if it gets stuck. [When is a replacement necessary?]: If the rear valve of the Polaris 280/380 pool cleaner gets stuck on an obstruction, there is a problem with the nozzle, or the emergency valve is open but the nozzle is no longer spraying water, you should check or replace the valve. The Covienapp G52 emergency valve solves this problem.