This automatic water level control float valve maintains the correct water level in tanks and storage applications, automatically adjusting as water level changes to prevent overflow and shortages. Automatic level control: Float design responds to water level changes, preventing overflow or underfill. 1/2 in connection: Standard 4point threaded interface for easy installation in humidifiers, tanks, or other water storage systems; reliable, leakresistant. materials: Metal and polypropylene construction provides durability, aging resistance, and temperature tolerance for varied water environments. Adjustable lock: Builtin adjustment lock lets you set the target level precisely, reducing maintenance and waste. Applications: Use in humidifiers and storage tanks to automate off and reduce water waste. Use in irrigation systems or reservoirs to maintain stable water levels and conserve water. Use in hydroponics or livestock troughs to ensure a consistent supply with minimal maintenance.