【Upgraded design】:The upgraded new product is that the handle is specially designed to be easy to press, and the comfortable grip makes it easy to press. The working principle of the water changer is atmospheric pressure. No need for electricity and safety. The aquarium gravel cleaner is quiet and does not make noise when it works. 【Easy to Use】: The fish tank water changer is easy to operate and is a new upgraded product. When in use, hold the handle and manually press it down. The water will automatically be sucked into the hard tube and flow out through the hose to quickly clean the fish tank. It can be used easily without wasting time. 【Multifunctional Product】: Gravel cleaner can be used to wash sand, algae scraping,absorb dirt, dust, suck fish feces, change water, etc., to meet your multiple needs, one product can be used for multiple purposes! 【Accessories include】: 1* Labor-Saving Air Pump(With fixed screw); 2* Water Inlet Pipes; 1* Extension Pipe Connector; 1* Water Outlet Hose (79 inch hose); 1* Glass Scraper (Algae removal); 1* Water Flow Clamps (water volume control); 1 * Fixed Clamp (fixed hose), Abundant Fish Tank Accessories, Convenient installation, Simple operation, Time-saving and Labor-saving. Multiple Functions: Aquarium gravel cleaner kit can wash gravel, absorb dirt, and water changing,ect.Without touching dirty water with your hands. Unique Design: Novel handle design (with fixed valve) has greater suction power. When the fish tank water changer is siphoning, you only need to fix this product on the fish tank glass. It saves time and effort,and Make water changes easier. Suitable for a Variety of Water Tanks: This product is suitable for aquariums of various sizes. You can adjust the length of the inlet pipe according to the size of the fish tank. Multiple functions 1Water Changing-Labor saving grip, thickened air cavity; 2Sand Washing-Effectively separating and cleaning dirt; 3Algae Scraping-With duckbill suction inlet accessory, Cleaning Glass And Raking Sand Aquarium gravel cleaner has a 3D filter basket design to prevent clogging Aquarium gravel cleaner is the latest design, using the siphon principle to have greater suction, and the comfortable grip provides a better user experience. Suitable for daily cleaning of most aquariums. Clean the aquarium regularly to provide a healthy and clean living environment for underwater friends. Put the water inlet pipe into the aquarium, press the air pressure button until there is a steady flow of water, the next thing to do is to wait. Installation Steps The First Step Connect the white inlet pipe to the port wiht the filter. The Second Step Two water inlet pipes can be connected or disassembled to suitable for various types of fish tanks. The Third Step Connerct the white outlet pipe to the port on the bottom of the pistol water changer.