This valve is the replacement of the traditional float ballcock, which can be applied to various systems of high water tanks, pools, water towers of the industry and civil construction, etc. Automatic control, low self-complementary water, water full automatic stop Four intakes, large volume of water Beautiful appearance, small size, practical, simple installation Without electricity, easy to use, long life, low failure rate, saving water resources Working pressure range: 0.2-10kg Applicable Medium: clean water Applicable Medium temperature: less than equal 70 Celsius Resistance to high temperature medium temperature: 70 Celsius~120 Celsius Material: Nylon PA66, stainless steel screws, Food grade rubber When the pool or tank water levels fall, the valve body will sink down and then the forerunner of the control valve will be opened. As the pipe water pressure affects, the seal face of control valve will be opened. Finally the water comes out and vice versa. Note: If the water quality is not good, then the valves need to be maintained properly. If the users find the time of adding water becomes longer, he can just upload the water inlet and make it washed. colour:white Material:Engineering plastic Size(L*W): Approx. 83*71mm / 3.27*2.8inch Diameter: Approx. 46mm / 1.81inch Package Contents: 1 * Water Level Control Valve Only 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.