Features: When the water level is below the valve level, the float valve automatically replenishes water for tanks, water towers, and livestock drinking containers. Once the desired water level is reached, it automatically stops filling. The valve closes as the water lifts the internal float. This valve replaces traditional ballcocks, requires no electricity, is easy to use, has a long service life, low failure rate, and helps conserve water. Widely used in: water tanks, water towers, swimming pools, solar water systems, toilets, hot water boilers, animal watering systems, air cooling units, humidifiers, residential buildings, cooling towers, steamers, and more. Internal floating ball mechanism allows water flow until a specific level is reached. As water rises, buoyancy lifts the float to shut off the water supply. When water level drops, the valve reopens to resume flow—no electricity required. Ideal for maintaining water levels in garden waterfalls, fountains, rainwater harvesting systems, swimming pools, poultry farms, automatic watering fountains, cattle watering, drought conditions, outdoor rainwater collection containers, and similar applications. Package Includes: 1 x Automatic Water Valve Specifications: Material: Plastic + Rubber Size: As shown in image Type: 6 Types Optional Note: 1. Please allow 1-2 cm errors due to manual measurement. Ensure you are comfortable with this before ordering. 2. Due to differences in monitor displays, the actual color of the item may vary from the image.