OASE Indoor Aquatics BioStyle, Grey

COMPACT, SLEEK POWER FILTER – Quiet, energy-efficient hang on the back filter is ideal for fresh or marine aquariums up to 20 gallons. CLEAN, CLEAR, HEALTHY WATER – The included multi-stage filter cartridges and filter foams clean on all mechanical, chemical, and biological levels of filtration for a truly healthy aquarium. This filter includes 1 multi-stage filter cartridge and 1 biological filter foam. EASY MAINTENANCE - The equipped cleaning indicator visually shows when it is time to replace the mess-free, disposable cartridge or clean the filter foam. ADJUSTS TO YOUR AQUARIUM – Features include a leveler Foot for securing filter to different aquarium glass thickness and a telescopic intake that extends from 6 in. to 14 in. for varying aquarium heights. A built-in adjustable flow control allows you to precisely change the intensity of water movement. QUALITY DESIGN – Made in Italy, with German engineering from OASE and backed by a 3-year warranty.