Keep the water clean: The aquarium filter has a unique shape that can reduce the number of water changes in the aquarium and create a clean and healthy environment for your aquatic life. Highly efficient filtration function: The built-in filter has good filtration performance, can absorb and remove grease and other debris, form a filtration and circulation system, and achieve the water purification effect . User-friendly design: Unique shower hose that creates a waterfall effect. The water inlet takes a narrow fence to effectively prevent fish and shrimp from entering the filter. Easy Installation: On the back of the filter, there is a strong suction cup which can be easily attached to any place in the aquarium. The 4W filter is suitable for aquariums from 40 to 60 liters. Maximum flow rate up to 300L/h. Wide Application: Not only can filter, but also can be used as an air pump to increase oxygen content. It can be used in aquariums, fish tanks, breeding ponds, stone fountain, waterfall, hydroponic systems, etc. Number of pieces delivered: 1 Color: Black Size: 55*45*154mm