Features: Reliable and durable. Simple internal structure, fine workmanship. Apply to: Hydraulic instability, water flow too fast, water purifiers, solar energy, gas heater and faucet. Valve working principle can be simply understood as the entrance pressure and outlet pressure = spring force, through the control valve closure flow inside the opening of the size to control the pressure at the outlet, the water through the opening, closure and fluid resistance is small, the pressure loss is small, the outlet pressure is greater, and vice versa outlet pressure is small. Specifications: Material: Brass Connector Size: DN25 (G 1") Water Pressure: PN 1.6 Connection Type: Internal Thread Overall Size: 108x72x33mm/4.25x2.83x1.3"(LxWxT) Quantity: 1 Pc Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you No Retail Package Package Contents: 1 x Water Pressure Reducing Valve (1A50932)