This is a Aqua One Maxi 102F Internal Filter for Fish Tanks up to 75 Litres. Aqua One Maxi Internal Filters offer an effective biological and mechanical filtration solution for smaller aquariums. It offers variable outlet options including a spray bar, meaning this filter can be customised based on the needs of the aquarium. Additional chemical filtration, such as activated aquarium carbon can be added to the filter compartment allowing for a complete filtration system. It is a silent running and reliable filter that is completely submersible with its sealed motor.