Hypolinx Upgraded Polaris G52 Backup Valve Replacement Kit for Polaris Pool Cleaner 280, 180, 380, 480, with High-Strength Gears and Crack-Resistant Case Kit for Polaris Pool CleanerBrand: Hypolinx Color: White Features: For long lasting performance, the Polaris G52 backup valve case kit and collar are made from robust PC material with reinforced ribs and increased wall thickness, providing exceptional resistance to cracking and high pressure damage, even from impacts. Reinforced internal gears of the Polaris backup valve, made from high strength POM, resist wear, ensuring smooth switching between forward and reverse modes for