RapidAir 1/4″ body push-button release air coupler with 1/4″ Male NPT inlet threads. This is a very high-quality coupler that features a impact-resistant, high-grade body. This coupler is easy to use for anyone and is built for safety and high efficiency! The quick-release button on this coupler allows you to easily release plugs with one hand! It also purges the air on everything downline, such as air hose and tools, so that there is no hose whipping or sudden pressure releases. This coupler features a 1/4″ body and has a 1/4″ male NPT threaded inlet.