Aquarium Waterfall Filter Pump Fish Tank Hang External Oxygen Pump Water Filter Features: Quality aquarium fish tank waterfall hang on filters. Quiet and energy efficient, easy to use and install. Suitable for both freshwater and marine fish tank. Special cascade flow design, improving oxygen dissolving. Adjustable flow value to adjust flow and dissolved oxygen for creature growing Suitable for water-circulation, biochemical water filtering and adding oxygen into the water in aquarium. Specifications: Item Type: Aquarium Tank External Filter Material: Plastic Color: shown as pictures Size: 8×7×11cm/3.15×2.76×4.33in (Approx.) Power: 3W Max Flow Rate: 250L/H Voltage: AC 110V 50/60Hz Quantity: 1 Set (other accessories demo in the picture is not included) Package Included: 1 Set X Aquarium Tank External Filter