Complete automatic wiper system for the quartz sleeves of a Berson GS6 ultraviolet disinfection system. The wiper sweeps the sleeves to clear the scale, mineral deposit and biofilm that would otherwise absorb UV before it reaches the water, which is what keeps the reactor at its rated dose between services. Supplied as a complete set ready for installation. It is most worth fitting where water quality varies and manual cleaning is impractical or not frequent enough. Confirm the reactor designation before ordering, as wiper assemblies are specific to the GS model. Reference number 10108-0508.