1. EFFORTLESS INSTALLATIONThe DN15 fully automatic builtin float valve water level control valve is designed for easy installation. Its compact size allows for convenient placement, while its estimated current rate of up to 40 psi and 3 gallons per minute ensures efficient water control. 2. Power OperationThis valve eliminates the need for electricity, making it a reliable and costeffective alternative to conventional float valves. With its long life, low failure rate and resourcesaving features, it trouble operation. 3. Environmentally friendly: the float valve is environmentally friendly and ensures the of your water supply. It does not emit harmful substances, making it suitable for various applications without affecting water quality. 4. Applications: This float valve is compatible with a variety of applications, including tanks, towers, swimming pools, solar systems, toilet systems, drinking water supply, air coolers, air coolers, humidifiers, civil buildings, cooling towers, steam generators and more.