Airbrush Quick Release Disconnect Coupler with Plug (1/8" BSP Male and Female Connections) (Airbrush Not Included). Fits airbrushes and hoses with 1/8" size fittings, such as Iwata, Devilbiss, Master Airbrush and many other popular brands. The Quick-Release Action allows you to quickly change airbrushes when you use multiple airbrushes with a single air supply hose. Coupler Body: Standard 1/8" BSP Male Fitting Threads. Coupler Plug: Standard 1/8" BSP Female Fitting Threads (Male Nipple Tail 5mm). Automatically shuts off air flow from the hose when disconnected. Connects and disconnect by simply pull back the spring-loaded sleeve to either connect the plug or to separate the plug. Coupler allows the nipple plug to swivel, to prevent hose kinks.