UNIMAX filters are designed for the filtration and aeration of water in freshwater or marine aquariums. High-performance pumps and large filtering capacity, combined with reliable design, will guarantee ideal water parameters in the tank. Thoroughly selected filter media for mechanical, chemical, and biological filtration are placed in three filter baskets. The high capacity of UNIMAX filter cartridges ensures long-lasting high-performance filtration in aquariums with the capacity of up to 700 l. Every UNIMAX filter is equipped with a sprinkler to increase the area of contact between the water surface and the air for better aeration. During operation, the air is automatically removed from the filter. UNIMAX filters offer maximum comfort, since they have an inbuilt self-priming mechanism designed to automatically fill the filter with water, eliminating the hassle you might experience when filling the filter manually. The main gaskets between the containers and the lid are made of special silicone to guarantee maximal tightness of the device. UNIMAX filters boast low power consumption and high filtration efficiency, relative to the recommended capacity. The four hoses in the UNIMAX 500 and 700 models ensure constant water circulation and eliminate dead zones. In these models, additional circulation pumps are used to guarantee high performance while maintaining exceptionally quiet operation. The integrated easy-to-operate shut-off valve is used to disconnect the inlet hoses when changing water or cleaning the filter. For up to 250L tank use