AQUATOP UV Sterilizing Pump - 13 watt UV AQUATOP's UVE Series submersible UV filters are designed to be fully submersible in both fresh and saltwater. Easy to install and maintain, this innovative and flexible filter will help eliminate unsightly algae and control unwanted algae blooms. The UV bulb aids in the health of aquatic life by eradicating free floating microorganisms and disease causing pathogens in both salt and freshwater aquariums. Each unit is equipped with an optional venturi line for added oxygenation and offers an adjustable flow rate for a customized fit. The innovative UVE Series is compact and outfitted for professional aquarium use.