Description Package Contents: 1 x 1/4 (4 Holes) Compressed Air Pressure Reducer with German Style Pressure Regulator and Pressure Gauge 1 x Plug (can close 1 hole, can convert 4 holes into 3 holes of pressure regulator, no leakage) 1 x Adhesive Tape High Quality Material: The air compressor pressure regulating valve is made of high quality metal, sturdy and durable, not easy to damage. Good sealing and accurate scale: The pressure gauge has an accurate scale, which makes the operation easy to read the pressure value and adjust the reading data. Function: The closing and starting of the air compressor can be adjusted through the value indicated on the pressure gauge. Easy to install and remove: The 1/4 pressure reducer can be directly screwed onto the threaded connection of the compressor and other machines, and is easy to install and remove. Shipped Quantity: 1 Piece