OASE BioStyle is a sleek, compact power filter, ideal for marine and freshwater aquariums. . BioStyle filters are designed for easy installation, with an adjustable leveler foot for securing the filter to different thicknesses of aquarium glass and with a telescopic intake for varying aquarium heights. The filter’s built-in adjustable flow control allows you to change the intensity of water movement in your aquarium and increase oxygenation, or input of oxygen at the surface. Designed with German engineering and manufactured in Italy, this quiet and energy efficient filter is backed by a 3-year warranty.