Feature: 1. ADJUSTABLE WATER FLOWS: The water flows from the rain shower pipe of the Internal power filter can be controlled by the adjustment valve, and the direction of the water flows from the rain shower pipe can also be adjusted at will. 2. OXYGEN BOOSTING FUNCTION: four suction cups can firmly fix the filter in the fish tank, with oxygen boosting function, add oxygen from the oxygen outlet to the water, which helps to promote the growth of fish, aquatic plants and so on. 3. MULTI LAYER FILTRATION: Large capacity filter box, multi layer filtration, easy to disassemble, better water purification, adsorption of tank debris and fish poop, long lasting water clarity. 4. HIGH STRENGTH: High efficiency oxygenation, constant water bubbles, adjustable air volume, high strength rotor, long service life. 5. PLASTIC MATERIAL: Submersible internal aquarium filter is made of plastic, which is durable, not easy to be damaged, can be used for a long time. Specification: Item Type: 6W Aquarium Internal Filter Material: Plastic Power: 6W Flows Rate: Maximum 500L/H Suggested Aquarium Size: Approx. 60cm / 23.6in Within. Package List: 1 x Filter1 x Hose Adjustment Valve4 x Suction Cup2 x Rain Shower Pipe2 x Outlet1 x Connection Fittings1 x Instruction Manual