Specification Brand : Swisher BulletPoint1 : WHAT YOU GET: 1 x G52 Back Up Valve Kit, including G53 Gear Mechanism, G54 Outer Casing and G57 Outer Ring. This item is also suitable in saltwater pools. BulletPoint2 : IDEAL REPLACEMENT PART: BlueStars G52 Backup Valve is made exactly fit for Zodiac Polaris Pool Cleaner models 180, 280, 480 PRO, 3900 Sport, Vac-Sweep 280, 280 TankTrax. BulletPoint3 : PROVIDE A BACKUP AND REVERSE MECHANISM: BlueStars G52 Backup Valve Kit Replacement provides a backup and reverse mechanism for your Polaris Pool Cleaner. It operates in conjunction with the pool cleaner's internal mechanisms and helps ensure proper pool cleaning coverage. BulletPoint4 : PREVENT ANY STOPPAGE: BlueStars G52 Backup Valve Replacement activates to reverse the direction of the pool cleaner. The valve opens every 3 minutes for 30 seconds, allowing the cleaner to change its cleaning path, preventing it from getting stuck in corners or on obstacles. It helps ensure comprehensive cleaning of the pool surface and efficient debris removal. BulletPoint5 : PREMIUM QUALITY: BlueStars G52 Backup Valve is made of a sturdy and wear-resistant polymer blend and has a durable construction, reducing cracking on the valve case and ensuring the valve's longevity and functionality in the pool environment. GpsrSafetyAttestation : 1 IncludedComponents : Backup Valve ItemName : Swisher 9057TK Genuine Original Equipment Manufacturer ItemPackageDimensions_Height : 18.796 centimeters ItemPackageDimensions_Length : 9.8044 centimeters ItemPackageDimensions_Width : 11.4046 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : swimming-pool-automatic-cleaner-replacement-parts Manufacturer : Swisher ModelName : 9-100-1200 ModelNumber : 9-100-1200 NumberOfBoxes : 1 PartNumber : 9-100-1200 ProductDescription : Swisher part number 9057TK ProductSiteLaunchDate : 2018-03-21T07:00:00.000Z SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 31160000