Size: L X W: 40 x 25mm / 1.57 x 0.98inch. External thread diameter: 13mm / 0.51inch. Internal thread diameter: 12mm / 0.47inch.
Material: Made of high quality brass, firm connection and corrosion resistant.
Features: Specially designed for compressed air, the connector is easy to install, the valve can be quickly adjusted in any direction, the air flow is controlled, and the air pressure is kept constant.
Package included: 2pcs 1/4" NPT Male & Female In-Line Air Flow Valves.