304 Stainless Steel Small Fully Automatic Water Level Control Float Valve Water Pipe Cut-Off Valve Kitchen Faucet Water Full Stop Water Tower Water Tank Reservoir Float Valve With Tape

【No Electricity Required】The  water valve inside allows water to flow until it reaches a specific level. Once the water level reaches this height, the float valve is pushed up by the water due to buoyancy and stops the flow of water. When the water level starts to drop, the valve will open again and water will start flowing again, so no electricity is needed