This aquarium water changer is made of high quality plastic which can be used for a long time. The transparent and faster PVC pipe transfer fluids. Manual control system, washing, sand cleaning, correct adjustment of the angle of inclination of the small suction head, can absorb effectively fish manure and food residue in the sand, while cleaning the sand and cleaning the water quality. Clean the aquarium with a clean pump and keep it clean. Manual operation, easy to use and efficient. Pumps 30 liters in about 5 minutes. Total length: 145 cm. Keep your aquarium clean, filter gravel and suck up excess fish food, dirt and poisons with the bell which settle in the aquarium over time. Safe for fish and invertebrates, the filter prevents small fish or crayfish from being absorbed. Key features: Easy to use. It has been specially designed for cleaning gravel without damaging fish. Durable PVC hose, guaranteed for long term use Aquarium cleaner works on fresh water , salt and mini reefs and with a long hose for tall aquariums. Note: 1. The outlet must be lower than the water level of the inlet to allow liquids to flow out automatically. 2. Press and hold the air pressure button until the water flows out automatically. 3. This water change can be cleaned after cleaning the aquariums to extend the life. Specifications: Total length: 145 cm. Colour: blue, white. Materials: ABS, PVC and PC. Scope of delivery: 1 siphon.