The fish tank output nozzle, specifically the duck flat nozzle, is designed to provide a smooth and controlled water your aquarium. This flexible nozzle can be easily adjusted to direct water precisely where needed, ensuring optimal water circulation. Ideal for both freshwater and marine tanks, it helps maintain a healthy environment for your by preventing stagnant areas and promoting even distribution of nutrients. Features -Color:Black -Material:ABS -Size:12.30X2.80X2.40cm/4.83X1.10X0.94in -Duckbill design: the flat duckbill design effectively controls the direction of water flow, ensuring optimal water circulation in your fish tank -Adjustable water flow: the duckbill outlet nozzle allows you to adjust the water flow size, providing comfortable environment for your aquatic pets -Flexible hose: the bendable water hose makes installation and adjustment easy, allowing you to position the nozzle exactly where you need it -Versatile application: suitable for various fish tanks and aquariums, this nozzle meets the needs of different pet owners and their unique setups -Enhanced water quality: by controlling water flow and direction, this nozzle helps maintain better water quality, promoting a healthier environment for your fish Package list: 1pcs fish tank outlet duckbill