The Tetra IN 600 plus is a useful internal filter for all aquaria up to 100 litres content. The TetraTec IN 600 plus provides efficient mechanical and biological filtration to ensure crystal clear and pollutant free aquarium water. Feauters: removable filter cartridge for easy cleaning, adjustable air supply for optimal oxygene levels, adjustable flow rates 300 - 600 l/h, variable outflow direction, exceptional quality and reliability, power consumption 230 V/50 Hz, 8 W, for aquariums: 50 up to 100 L.