Feature: 1. 3 Modes: This fish tank filter is designed with rainfall mode, aerating mode and circulation mode, and it can be connected with different accessories, you can adjust the waterflow and waterflow direction as needed, you can also connect a hose at the water outlet to change the water. 2. Multiple Stage Filtration: This aquarium internal filter supports multiple stage and biological filtration for aquariums, which can remove waste and replenish aquariums with a reliable waterflow. 3. Oxygen Supplement: This aquarium filter can also double as an aeration system too because the bubbles that come out from the top increase the dissolved oxygen levels in the water. 4. Wave Making Function: This submersible power filter is equipped with wave generator and cotton filter. Filter material can be replaced or added according to your preference. Suitable for 250 to 350L large fish tank. 5. Ultra Quiet Operation: This submersible aquarium filter runs ultra quietly. Low wattage and high waterflow without air inside the filter, generates no noise. Your family life will not be affected, at the same time achieving water purifying effect. Specification: Item Type: Fish Tank Filter Material: Plastic Power: 30W Waterflow: Maximum 1800L/H Raise: 1.8 Meter / 5.9ft Recommended Fish Tank Size: Within 120cm / 3.9ft Suitable Fish Tank Capacity: 250 to 350L. Package List: 1 x Pump2 x Cotton Filter1 x Hose Adjustment Valve4 x Suction Cup2 x Rainfall Pipe2 x Water Outlet1 x Accessory1 x User Manual