3 IN 1 multifunctional cleaner Aquarium Water Changerchange water, wash sand, clean, is a multifunctional cleaning tool. The nozzle net prevents absorbing of juvenile fish, grass and gravel. Attached nozzle can help clean gravels which will effectively separates excrement and food residue from your aquarium, keep the water fresh. Special designExtended anti-slip tube for more effective drainage. Since the pump is unidirectional, please put the QV letter end downward against the bucket when using it. Easy to use The siphon pump is easy to grip, just press the pump a few times, the water starts automatically. The high quality PVC hose does not bend to block the flow of water, it simply bends in any position and adapts to your use. (Note: the position of the water outlet must be lower than the inlet) Package Include Compressed Structure - Equipped with 1pcs soft water pipe(72.4in) and 2pcs hard water pipes(11in*2). The gravel cleaner's hole is connected tightly with no worries the problem of water leaking.