High Quality Brass: The valve is made of brass, wear-resistant, not easy to rust, strong and durable. Having this water pressure regulator protects and helps extend the life of your equipment. Good feature: This pressure is simple internal structure, strong environmental use, durable in use. Convenient to use: easy to connect with the tube, simple to use. DN20 standard thread is convenient to use. Scope of application: 1.6Mpa, Inlet/outlet thread depth: 25mm Application: The location of The installation is suitable for installation in front of water equipment requiring pressure relief, such as water purifiers, solar energy, gas heater and faucet.