This project is made of high -quality materials, which can be durable and practical. It is easy to connect to the camp to supply water to reduce water pressure and protect your filters and hoses from being damaged. It can be simply understood that the working principle is to control the control closed in the inside of the size opening to control the pressure at the exit. Through the opening, the closure and the liquid resistance are small, the pressure loss is small, the exit pressure is greater, and the export is also the export. The pressure is small. 7.7 * 11 * 3 cm / 3.0 * 4.3 * 1.2 inches (L * W * H). Materials made with precisely designed materials. Reliable and durable. Simple internal structure, good workers are applied to: use to: use in: hydraulic instability, water flow too fast, water purifier, solar energy, heater and faucet. Packaging list: 1 X heavy type can adjust the hydrophobic pressure reduction valve DN25