Features: Automatically regulates water levels without electricity using a 0.2kg pressures threshold and durability 304 stainless steel construction for reliability, maintenance simple operations in water supply systems. Precisions engineered with corrosions resistant 304 stainless steel float ball and silicones sealing pistons mechanism to ensures leakproof performances and extended service life under continuous water pressure. Essential for plumbers, agricultural operators, and homeowners managing water storage tanks, livestock troughs, or residential plumbing installations requiring automated fluid control. Optimizes water flows in elevated tanks, irrigation setups, and industrial reservoirs where consistent liquid levels maintenance prevents overflows and equipment damage. Combines militaries grade stainless steel durability with pressure responsive technology to outperform traditional brass valves in harsh environments while minimizing maintenance costs. Specifications: Color:Five Choices Dimension:4.86x9.01cm/1.91×3.54in Component:stainless steel Package Includes: 1set Auto Closing Float Valves note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.