Convenient design: beautiful and compact, with 2 inlet tubes (40cm*2), easy to install and operate, suitable for different size of aquarium. Prevents clogging: the aquarium gravel filter cleaner changes the water and keeps it fresh, with a filter basket inside the tube to effectively avoid clogging of the gravel, it effectively separates and removes debris from the aquarium. Easy to use: water is pumped out by simply pressing the pressure button, equipped with a flow regulator, easy to install and operate, the aquarium gravel cleaner is perfect for cleaning your aquarium. Comes with many accessories: flexible hose, water flow clamp, glass scraper (to clean algae and stains from the tank), hose clamp and anti-backflow valve design. The valve is already installed and you do not need to install it again.