1pcs 1.7m Siphon Gravel Suction Pipe Filter Aquarium Fish Tank Vacuum Water Change Exchange Cleanser Siphon Simple Practical Features: Easy-to-use cleaner pump for aquariumKeeps the aquarium clean, gives your fish a nice living environmentKeep your fish healthyIdeal for use when replacing water in aquarium tank without damage to fishesUnique filter allows dirt in sand to be discharged along with waterWhilst emptying water from the aquarium the cleaner pump will also suck up dirt and debris from the bottom.Let the suction tube immerse in the fish tank, repeatedly squeezing the blue balloon for several times until the water can automatically discharge from the tankTube Length: Approx. 1.7mTube Diameter: Approx. 1.1cm/ 0.43"Material: PlasticPackage include:1 x Aquarium Water Change Tube