AUTOMATIC WATER LEVEL CONTROL FLOAT VALVE: our float valve No Need Electricity/No Manpower, When the water level in the water tower drops, the floating ball falls, the water pressure in the water pipe is used to open the plunger with the sealing silicone surface in the valve body, the valve body starts the water supply: when the water level in the water tower rises, the floating ball floats up, and the connecting rod drives the plunger.saving labor costs UNIVERSAL DIMENSIONS: 1/2inchWater Tank Valve with Side water intake turning head, 3/4 inch screw hole sleeved on an elbow for use with 3/4 inch water pipes become 3/4 inch side water intake.It can also become 3/4 inch upper water intake.Whether your 1/2inch or 3/4inch water pipe is used for upper water intake or Side water intake, it can be easily used. SAFE AND DURABLE MATERIALS: stainless steel fully automatic water level control float valve is made of food grade material stainless steel, ensuring the safety of drinking water. With an exquisite appearance and durable hard shell, it has strong friction and impact resistance, effectively increasing the service life of the product, and making friction in life no longer a problem.Not easy to rust. COMPACT AND CONVENIENT: Automatic water level control valve is small and does not take up space, and it is superior to the traditional process to effectively increase the water output, which is more than the traditional float valve. Practical for using, and simple installation. It has a long service life, has a low failure rate, and saves water resources. WIDE RANGE OF APPLICATIONS: Float valve is suitable for water tank water towers/pools/solar water tanks/water storage/livestock tanks, etc. It does not require electricity, and the pressure is greater than 0.2 kg for clean water to control the water level.Applicable temperature: 0-100 Material: Stainless steel colour: silver Package Contents: 1 x 1/2 inch valve body