This product is specially used for water level control of water tanks such as water towers and swimming pools to prevent water towers from overflowing when tap water is supplied. It is an updated product of the traditional float valve. Suitable for water tower pools, solar energy, aquaculture, food machine humidifiers, water heaters, livestock water and swimming pools, etc. Thread size: 1/2 inch. Made of high-quality nylon material, it is wear-resistant, anti-corrosive and has a smooth appearance. Beautiful appearance, small size, easy and simple installation. No electricity required, environmental protection and water saving: This product is used for automatic water level control of water tanks, water tower water, swimming pools, water tanks, solar water tanks, livestock drinking water, etc. No electricity is required, and the contact pressure is greater than 0.2 kg of clean water to automatically control the water level. Valve body material: food grade PA66 nylon Pressure range 0.1-12 kg Water inlet method: top water inlet/side water inlet Specification: clean water (if there are impurities, it should be separated and cleaned regularly) Applicable temperature: 0-70 Screw specification: 4 points Product features: small size, easy maintenance, etc. Product application: water tank, water tower, solar energy, aquaculture drinking water, automatic water replenishment for aquaculture, etc. Color: white Size: as shown Packing list: 1 piece, with elbow, raw material belt, filter