TOOGOO(R) Aquarium Fish Tank Battery Vacuum Syphon Auto Gravel Water Filter Cleaner Washer Brand new and high quality. Easy to install and use. Remove the dirty things from the bottom of your aquarium effectively. Supported two suction pipe sizes, suitable for both small and large aquariums. Also be used as a water siphon for water changes, or to empty your aquarium when you connect a hose to outlet.