This wiper ring with flap is specially developed to ensure efficient cleaning of the quartz sleeve in Berson UV systems. It keeps the surface of the quartz sleeve free of deposits, scale and dirt, thereby maintaining optimal UV penetration and continuous, efficient disinfection. The ring is easy to install and replace when needed, which makes it ideal for regular maintenance. Key benefits: efficient cleaning and protection of the quartz sleeve; compatible with Berson UV systems; maintains optimal UV output by preventing fouling; easy to fit and maintain.