Describe:1.3-in-1 Multi-Function Filter: The aquarium filter has the functions of filtration, oxygen aeration and surface separator, which can be used for water circulation, waterfall type, and can adjust the water flow according to the needs of the fish tank.2. Hanging filter: Hanging on the filter can increase the storage space of the filter. The length of the extended water inlet pipe can be adjusted between 3-15 inches (about 7.6-38.1 cm), suitable for aquariums of different heights, suitable for small tanks under 30 cm to filter and oxygenate!3. Easy to clean: Soak the filter for 2 minutes and rinse with water before use. Remove the fish tank filter every 1-2 weeks and rinse the filter cotton with clean water to maintain the filtering effect. No need to rep the filter cotton.4. Ultra-quiet: With the design of the water outlet, the flow value can be adjusted to adjust the flow. It is very quiet and will not affect the quality of sleep. Even if the fish tank is in the bedroom, you can only hear the smooth sound of bubbles bursting in the water.5. The multi-layer biochemical filtration submersible pump sends oxygen into the aquarium from below the water through the air intake pipe, and the continuous water flow allows the oxygen to diffuse to all parts of the aquarium, and at the same time brings carbon dioxide into the air. The otherworldly design concept is matched with Filter cotton, even the smallest dirt will not let go; strong rubber suction cups are easy to install on the aquarium wall.Specification:Name: 3 in 1 aquarium filterVoltage: 220VFrequency: HZPower: 2WMaximum flow: 200L/HMaximum lift: 0.45MPacking list:1*FilterNotes:If you have any questions or probl with this small fish filter, please contact us promptly and we will reply within 24 hours. Holidays or rest days will be delayed a bit.