Cloudy views in the pond? Not at all. Because THE OASIS UV-C precleaner Vitronic 11 W ensures that even stubborn infestation of pond water with hovering algae disappears again â and this even during the dreaded spring algae blooms in April. The power of the built-in UVC lamp destroys the cell structure of the suspended algae and thus effectively prevents their growth. Through the optical function control, you always have a view of the function of the UVC lamp. Simply connect the precleaner between the pond pump and the pond filter. Thanks to the three inputs on the housing Vitronic 11 W can be combined with different OASIS filter models (e.g. BioSmart) as well as other market standard pond filters.  This text is machine translated.