Specification Brand : LiStarUs BulletPoint1 : 【Fit for Polaris Backup Valve】Compatible with Zodiac Polaris Pool Cleaner Parts 180, 280, 380, 480 PRO, 3900 Sport, Vac-Sweep 280, Vac-Sweep 380, 280 TankTrax. BulletPoint2 : 【Upgraded G52 Backup Valve】The upgraded backup valve made with high strength proprietary crack resistant polymer construction, is more able to withstand high water pressure operation, and has twice the life span. BulletPoint3 : 【Ensure Full Cleaning】 Activating G52 backup valve will reverse the direction of the pool cleaner, preventing the pool cleaner from getting stuck in corners or obstacles. BulletPoint4 : 【Fixing Problems】If you experience the following, stuck in the reverse position, constant water discharge, inoperative, with a premonition of an explosion; may be gears working If this is caused by a misalignment in the center, open the housing and check for misalignment of the G53 external gears and correct it. If there is too much sand, the gears will get stuck. At this point, the grinding wheel will need to be removed to clean out the sand before work can continue. BulletPoint5 : 【Package Includes】Fit for Polaris backup valve replacement kit including G54 housing, G53 Gear Mechanism and G57 Outer Ring. Color : G52 Backup Valve ContainsLiquidContents : 1 ExternallyAssignedProductIdentifier1 : 085336862119 ExternallyAssignedProductIdentifier2 : 0085336862119 Hazmat1 : COMBUSTIBLE LIQUID, N.O.S., ((2-METHOXYMETHYLETHOXY)PROPANOL, ALCOHOLS, C8-10, ETHOXYLATED PROPOXYLATED) Hazmat10 : DE_Unregulated Hazmat11 : ES_Unregulated Hazmat12 : FR_Unregulated Hazmat13 : GB_Unregulated Hazmat14 : IN_GroundOnly Hazmat15 : IT_Unregulated Hazmat16 : JP_GroundOnly Hazmat17 : MX_Unregulated Hazmat18 : SG_CombustibleLiquid Hazmat19 : TR_CombustibleLiquid Hazmat2 : NA1993 Hazmat20 : US_CombustibleLiquidGround Hazmat3 : III Hazmat4 : 3 Hazmat5 : AE_Unregulated Hazmat6 : AU_Unregulated Hazmat7 : BR_Unregulated Hazmat8 : CA_CombustibleLiquidGround Hazmat9 : CN_Unregulated ItemForm : Liquid ItemName : Upgraded G52 Backup Valve Replacement for Polaris Pool Cleaner Parts, Compatible with Polaris 280,180,380,480,3900 Pool Cleaner, Fit for Polaris Backup Valve, 280 Backup Valve Replacing Zodiac G52 ItemPackageDimensions_Height : 21.0058 centimeters ItemPackageDimensions_Length : 9.4996 centimeters ItemPackageDimensions_Width : 19.2024 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : swimming-pool-and-spa-replacement-parts ItemTypeName : G52 Backup Valve Manufacturer : LiStarUs Material : Plastic ModelName : G52 Backup Valve ModelNumber : G52 Backup Valve NumberOfBoxes : 1 NumberOfItems : 1 PackageLevel : unit PartNumber : G52 Backup Valve PowerSourceType : hand_powered ProductBenefit : Contaminants ProductDescription : G52 Backup Valve Replacement for Polaris Pool Cleaner Parts, Compatible with Polaris 180,280,380,480,3900 Pool Cleaner SafetyDataSheetUrl : http://www.lonzawatertreatment.co.za/downloadables/safety-data-sheets SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 8