Aquarium Cleaner 2 in 1 Multifunctional Cleaning Kit - The gravel cleaner is perfect for water change and sand washing. The aquarium pump nozzle net prevents the absorption of juvenile fish, grass and gravel Compressed Structure of Aquarium Cleaner - Equipped with a fresh water hose (183 cm) and 2 hard water hoses (28 cm x 2). The hole of the gravel cleaner is tightly connected without worrying about the problem of water spillage Aquarium Filter Check Valve Design, Note: Since the pump is a one-way pump, it is necessary to place one end of the letter QV against the water outlet Aquarium water changer, the pump is easy to grasp, just press the pump a few times, the water will start automatically. The high-quality PVC pipe will not bend to block the water flow, just bend it to any position and fit your use. (Please note: the position of the water outlet should be lower than the inlet) Aquarium cleaner, the aquarium gravel cleaner can be divided into different parts and you can adjust it