Instead of the traditional float valve. It will automatically control the water supply and stop the water supply according to the water level changes. It can solve the problem of water leakage and save more than 60% of water.Suitable for industrial applications such as water tanks, water towers, livestock and poultry drinking water, air cooling, hydroponics, machinery, humidifiers, swimming pools, toilets, solar energy, hot water boilers, aquariums, etc.When the water level rises to the water level limit line, the water level control valve will immediately stop water supply; when the water level drops, the valve will automatically start water supply.Small size and easy to install.Since this product is a valve that can move automatically, it needs regular inspection and maintenanceName: Automatic water level control valveColour:White+blueMaterial:nylonSize:11.5 x 7.5cmPackage Contents:1 x Four points side inlet water level control valve1 x raw material1 x Water outlet elbow1 x English manualOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.