Powerbox Nano 100 for 100 litre (22 gallon) Aquariums ,Approx Flow Rate: 500 lph . Dimensions: 160x230x390mm(WxDxH).Two large safety locks ensure that the unit is fully watertight. Telescopic water intake strainer system allows the an outlet spray bar to ensures maximum water circulation of filtered water. The TMC v2 PowerBox is powered by an efficient and quiet pump, which provides a high performance at a low wattage and hardly any noise.