Feature: 1. ADJUSTING PRESSURE AND THREAD: With this air filter, you can get adjusting pressure. And both the air inlet and air outlet threads are G1/2in. 2. OPERATING METHOD: Pull the top button of this air filter up and turn clockwise to increase pressure, or counterclockwise to release pressure. 3. DRAINER FUNCTION: With this air filter, you can easily dispose of the waste trapped inside. This filter has a water drainer function, differential pressure drainage and automatic drainage. 4. DRY AND CLEAN KEEPING: Pressure regulator air filter can filter small particles and dust to keep the air dry and clean. 5. EASY INSTALLATION: Pressure regulator air filter is lightweight, easy to install and remove, friendly to novices. Specification: Item Type: Air Filter Material: Aluminum Alloy, ABS, Brass Air Inlet Thread: G1/2in Air Outlet Thread: G1/2in Recommended Pressure: 0.1-0.85Mpa Ultimate Pressure: 1.0MPa, 10.0bar, 145psi Operating Temperature: 41-140℉ Filtration Accuracy: 5μm-40μm Drainer Function: Differential Pressure Drainage, Automatic Drainage. Package List: 1 x Pressure Regulator Air Filter