This genuine Samsung WaterWall spray arm assembly (DD97-00209A) is designed for use in various Samsung dishwashers, providing a dependable replacement for worn or damaged parts. When your dishwasher isn't cleaning effectively, it might be due to a faulty spray arm assembly. The WaterWall spray arm slides across the bottom of your appliance, ensuring thorough water coverage on the dishes. For your safety, disconnect the power and water supply before installation. Remember to check your appliance's model number for compatibility before purchasing.