The fish tank water level control designed to keep your aquarium water levels stable. This automatic water replenishment device is for both planted and marine tanks, ensuring your aquatic environment remains balanced. The refill user-friendly and easy to install, making it an essential accessory for any aquarium enthusiast. Features -Color:White -Material:ABS -Size:7.60X4.20X2.50cm/2.99X1.65X0.98in - management: automatically senses and replenishes water levels, providing and efficient solution for maintaining your aquarium -Consistent and stable environment: maintains precise water levels to create a stable and healthy environment for your , promoting their wellbeing -Effortless aquarium care: reduces the need for frequent water topoffs, making aquarium maintenance easier and more convenient for you -Adaptable design: compatible with various types of aquariums, including marine and planted tanks, offering flexibility for different setups -Robust and reliable: constructed from durable abs material, this device is built to withstand continuous use and provide reliable performance over time Package list: 4 x set of Water Level Controller