Automatic water device; Swimmers always float in the water. When the water rises, the swimmers swim and the bar powered by the ascent also rises. Connected to the rod and the valve, if up to a certain position, close the water. Easy installation and flexible adjustment, can be installed at any angle. Non-toxic, tasteless, can be used for drinking water; Suitable for chemicals, corrosion, household, aquarium etc. Color: white Material: Plastic Weight: 180g Aperture: 1/2 inch Pressure: 0.1 - 1.2MPa Water temperature: 0 - 70 Celsius Package includes: 3 x 1/2 inch float valve switch 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.