Aquarium Cleaner 2-in-1 Multifunctional Cleaning Kit - Gravel Cleaner is perfect for water changing and sand washing. The aquarium pump the nozzle net prevents the absorption of juvenile fish, grass and gravel Compressed structure of the aquarium cleaner - Equipped with a fresh water hose (183 cm) and 2 hard water pipes (28 cm x 2). The hole of the gravel cleaner is tightly connected without worrying about the water spillage problem 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 grip, just press the pump several times, the water will start automatically. High quality PVC hose will not bend to block water flow, just bend 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 depending on your needs. It can also be attached to the aquarium to free your hands, ideal for daily maintenance and regular water changes