The Tetra IN 300 plus is a useful internal filter for all aquaria up to 40 litres content. The TetraTec IN 300 plus provides efficient mechanical and biological filtration to ensure crystal clear and pollutant free aquarium water. The filters state of the art features, which combine efficiency and ease of use, include:-removable filter cartridge for easy cleaning-adjustable air supply for optimal oxygene levels-adjustable flow rates 150 - 300 l/h-variable outflow direction-exceptional quality and reliability-power consumption 230 V/50 Hz, 5 W-for aquaria: 10 up to 40 l-2 years warranty- dimensions: 4.5 x 6.4 x 9.8 cm (width x depth x height)