Usage Tips:Features: Automatic water level control: our automatic water level control for valve is a product that replaces the traditional float for valve. It automatically controls and stops the water supply according to change of water level. Solve the problem of water leakage and save more than 60% water. Application: water for tank, livestock drinking water, air cooling, hydroponics, machinery, humidifier, swimming pool, toilet, solar energy, aquarium and other industrial applications. Working principle: when the water level rises to the water limit, the water level control for valve immediately stops water supply; When the water level drops, the for valve will automatically start water supply. Easy to install: small size, estimated flows up to 40 psi 3 gallons per minute, 60 psi 5 gallons per minute. This product is an automatic water level control for valve, which can move automatically and needs regular inspection and maintenance. Specifications: Material: Plastic Weight: 80g Size: 6x10.7x5cm/2.36x4.21x1.96inch Package Includes: 1x Automatic Float for Valve note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.