Descritption:<br /><br /> Aquarium Fish Tank Auto Battery Siphon Water Vacuum Gravel Cleaner<br /><br /> Suitable for both samll and large aquariums<br /><br /> Remove the dirt from the bottom of your aquarium effectively<br /><br /> Daul purpose, used as a water siphon to change water, and to remove the dirt<br /><br /> Easy to install and operate, just press the power button to start<br /><br /> Specification:<br /><br /> Material: Plastic<br /><br /> Max Flow Rate: 520L\/H<br /><br /> Max Water Level:52cm\/20.47&amp;quot;<br /><br /> Power Supply: 2 C\/ LR14 Batteries (Not Included)<br /><br /> Package Includes:<br /><br /> 1 x Aquarium Auto Battery Siphon