Description This products is a filter. Adjustable flow value to adjust flow and dissolved oxygen for creature growing. Energy-saving and environmental-friendly, Ultra low power consumption, low radiation to keep ecological balance. It can make good water circulation and filter the dirt in the cylinder to keep the water clean, but also the water to bring a large number of oxygen into water, the oxygen will dissolve in the water, add the oxygen content of the water quickly, and maintain a good ecological environment of the aquarium tank. Feature - Color: as shown - Material: Plastic - Size: 10x8x8.5cm - Flow : 250/LH - Filter board : NO - Cable length : 1.2M - Removes grease and other impurities from the water. - High efficiency filtration, waterfall design flow, fun and practical. - Easy to install ,only fill up water and plug in and easy to maintain. - Suitable for fresh and saltwater, with biochemical, physical filtration and aeration function. - Special biochemical filter cotton, more effective in filtering impurities in water, stable water quality Removes grease and other impurities from the water. High efficiency filtration, waterfall design flow, fun and practical. Easy to install ,only fill up water and plug in and easy to maintain. Suitable for fresh and saltwater, with biochemical, physical filtration and aeration function. Special biochemical filter cotton, more effective in filtering impurities in water, stable water quality