This quick-release coupling mounts inline between your airbrush and hose, and provides an easy method for disconnecting and/or changing airbrushes without the need to release air pressure or unscrew fittings. This coupling also swivels, helping to eliminate hose kinks. Easy-to-use, simply pull back the spring-loaded sleeve and the fitting separates into two pieces; a small male nipple (also called a tail) that remains attached to the airbrush and a body section connected to the air hose. An internal, self-sealing mechanism prevents air from escaping when the coupling is separated. Standard 1/8" BSP connections. Includes one nipple (5mm diameter) and one body. (Model: QD-Only)