Automatically Maintains The Water Level in The Tank: Designed to maintain the water level in the tank automatically. It can automatically turn on and off the water supply as the water level in the tank changes. Large Flow: The newly upgraded valve device effectively increases the water yield and increases the water yield by 20percent compared with the traditional float ball valve. Prevents Water Wastage: The valve helps to prevent water wastage by automatically turning off the water supply when the tank is full and turning it on when the water level . Easy to Install: The valve is easy to install and requires minimal maintenance. It is also designed to be user-friendly, allowing for easy adjustment of the water level. Wide Application: Use this valve to replace the traditional float ballcock and stay water-efficient for pools, water towers, tubs, sinks, solar water tanks, animal husbandry drinking water, aquaculture, and other automatic water supply! Colour: Material:Plastic Size:1/2Inch Package Contents: 1 * top water inlet 1 * side water inlet Only the above package content, other products are not included. Note: Light reflection 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.