Usage Tips:3/4inch TOP WATER INLET: The external thread diameter of the water tank float valve is 3/4inch(25mm), and the top water inlet adopts threaded connection, which is easy to install. AUTOMATIC WATER LEVEL CONTROL VALVE: the float ball valve can auto fill and shut off without using electricity. Responsive. The water level is controlled with clean water with a pressure greater than 0.2kg. Low failure rate, stable performance, saving water resources. LARGE WATER OUTPUT: Mini small float valve does not take up space, 20% more water output than traditional float valve. SAFE AND DURABLE: The water float valve is made of food-grade 304 stainless steel to ensure the safety of drinking water. Sturdy and durable shape, high temperature resistance 0℃-100℃, long service life. WIDE APPLICATION: The 304 stainless steel fully automatic water level control float valve can be used in water tank, stock tank, water trough, pool, pond, fountain, cattle drinking water, etc. Suitable for industrial and civil use. Colour:Silver Material:304 stainless steel Size:About 111x53.8x25mm Package Contents: 1 * pool auto fill float valve 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.