Tfwadmx Water Change Pump Aquarium Vacuum Siphon Hose Gravel Cleaner Fish Tank Water Filter Cleaning Tool Simple water changer for fish tank,Excellent helper to change water This aquarium cleaning pump is made with lightweight,durable plastic,wont be hurt or disturbed your pets while using Easy to use. Just squeeze the pump and water will flow from the tank into a bucket Notice that the water outlet should be lower than the water inlet Package content : 1 X aquarium water changer