Aquarium Cleaner 2 in 1 Multifunction Cleaning Kit - The gravel cleaner is perfect for water changing and sand washing, the aquarium pump nozzle net prevents the ingestion of fry, grass and gravel. Aquarium Cleaner Compressed Structure - Equipped with fresh water hose (183cm) and 2 hard water pipes (28cm x 2), the hole of the gravel cleaner is firmly connected, no need to worry about the problem of water spilling. Check valve design for aquarium filter. Note: Because 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 several times, the water will start automatically. High quality PVC pipes will not bend to block the water flow. Just bend it to any position you like and adjust it to suit your usage. (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