800 ClearView Hang On Filter 800 L/Hr Hang on filters are designed to be clipped onto the back of your aquarium. They are ideal for garden aquariums or any other, where a submersible filter would take up too much space. They provide very high levels of filtration. Carbon Filter Cartridges should be replaced every 6-8 weeks to maximise efficiency. Flow Rate: 800L/hr Wattage: 9W Voltage: 230V/50Hz Suitable for: Coldwater, Tropical & Marine