An ingenious innovation: the water is sucked in, filtered, at the same time heated and flows back into the aquarium at the correct temperature. EHEIM has once again pioneered a revolutionary idea and transformed it into the perfect technical reality. We are the only company to offer you an external filter with integrated heating system (IHS). Robust 210 Watt Heating element LCD Temperature Display High Throughflow rate with low energy consumption Prefilter for extra long maintenance intervals Self-priming Electronic adjustment of throughflow rate Specifications: For Aquariums: 300-600 Litres Throughput: 1850 l/h Filter Capacity of 8.6 Litres 100-350 Watt 2,6 Max Head Height Includes Fine and Coarse Filter media