Feature: 1. [EXCELLENT MATERIALS] The air pressure regulator is made of aluminum alloy and stainless steel, with stable performance and durability. 2. [PRESSURE RANGE] The adjustment range of the air pressure regulating valve is 0.05-0.85 MPa, which can be adjusted automatically. 3. [G1/2 PIPE CALIBER] With G1/2 threaded connection pipe caliber, which has firm connection and good airtightness. 4. [WITH PRESSURE GAUGE] The air pressure reducer has a pressure gauge to facilitate observation of the pressure value. 5. [HIGH PERFORMANCE] Small and compact, easy to install and does not take up space, with high filtration precision, efficient and durable. Specification: Item Type: Air Pressure Regulating Valve Material: Aluminum Alloy + Stainless Steel Model: AR4000-04 Pipe Caliber Thread: G1/2 Pressure Regulating Range: 0.05-0.05 85 MPa Maximum working pressure: 1 MPa Filtration accuracy: 5 m Operating temperature: 5-60 Valve type: with overflow type Package list: 1 x Air pressure regulator 1 x pressure gauge 1 x bracket fixed Note: Please pay attention to the direction of the button when installing to avoid reverse installation.