Features: The fish tank cleaner is lightweight and portable, easy to use, just connect the inlet and outlet pipes and press the air pressure button repeatedly, and the water will automatically start to flow into the bucket. With 2 inlet pipe, you can connect 1 or 2 pipes according to your fish tank size. The air pressing button has greater suction power, suit for cleaning or removing debris or dirts in the fish tank. Aquarium gravel cleaner kit has a gravel filter basket in the outlet tube (Already installed, no need to install it again), avoid blocking by gravel. Package Includes: 2* Inlet pipe, 1*Outlet pipe, 1*Water flow clamp, 1*Fixture clamp, 1*Filter basket, 1*Connecting pipe, 1*Valve, 1*Glass scraper. Specifications: Color: As Shown Material: ABS Size: Inlet pipe: 40cm/15.74in Outlet pipe: 207cm/81.49in Instruction: 1. Connect the water changer and install a suitable water inlet pipe according to the depth of the fish tank. 2. Place the water changer in the fish tank. 3. Put the outlet pipe into the water bucket (can be fixed with a fixing clip). 4. Press the air-pressing button until the water automatically flows out. 5. Lower the water inlet pipe to absorb fish stools and feed residues in the sand. Note: Please note that the water outlet must be below the inlet when used. Packing list Package Included: 2* Inlet pipe 1*Outlet pipe 1*Water flow clamp 1*Fixture clamp 1*Filter basket 1*Connecting pipe 1*Valve 1*Glass scraper