Multifunctional Aquarium Cleaner 2 in 1 Cleaning Kit - Gravel Cleaner is ideal for changing water and sanding. The fillets of the aquarium pump nozzle prevent the absorption of young fish, grass and gravel Aquarium cleaning compression structure - equipped with a soft water pipe (183 cm) and 2 hardwater pipes (28 cm x 2). The gravel cleaner hole is tightly connected, it is not necessary to worry about the problem of leakage of the aquarium filter check valve design, note: since the pump is a one-way pump, it is Necessary to rely on one end of the QV letter on the output water aquarium, the water pump is easy to grasp, simply press some pumps, the water will start automatically. High quality PVC tubes do not comply to prevent water flow, just to fold any position to adapt to your use. (Please note that: The location of the water port must be less than the input position) Aquarium cleaner, the aquarium gravel cleaner can be divided into different parts you can you adapt if necessary. It