freestyle 1.35m Aquarium Fish Tank Vacuum Siphon Gravel Suction Pipe CleanerAquarium Fish Tank Vacuum Siphon Gravel Suction Pipe Filter Cleaner Water Change Pump Feature: East to install and use. Detachable and assembled fittings. Suction rod length can be adjusted, suitable for a maximum water depth of 52cm, 520 liters per hour. With this tool, you can remove dirt from the bottom of aquarium. Provides a straw size for large and small aquariums. Can also be used as a siphon to change the water, or empty your aquarium when you