Improve water use performance: When the water is full, the water will stop automatically, and the water output is 20% higher than that of traditional water pumps. The automatic float valve is made of nylon material, which is food-safe and environmentally friendly material, safe and harmless. The water level control valve uses a mounting nut made of 304 stainless steel, which will not cause secondary pollution to drinking water due to rust. The water level regulating valve has a delicate and smooth appearance, high temperature resistance, high pressure resistance, and wear resistance. The automatic float valve can be used for automatic water replenishment of water tanks, water towers, water heaters, etc.