water level controller for aquariums is an essential tool for maintaining optimal water This device uses a float ball valve to regulate water flow, ensuring your tank remains at the nice level without manual intervention. Features -Color:White -Material:ABS -Size:10.50X6.70X4.30cm/4.13X2.63X1.69in - level control: automatically senses water levels, allowing the water level controller to refill the tank without manual intervention -Versatile compatibility: suitable for various types of aquariums, including planted tanks and saltwater tanks, ensuring broad usability -Easy to use design: utilizes a float ball valve that operates without external power sources, making it simple -Stable and reliable: the ball valve maintains consistent water levels, ensuring a stable environment for aquariums -Easy installation: water level controller features a straightforward installation process, enabling users to set up and adjust the valve with ease Package list: 1 x set of water level controller