GotHobby Airbrush Quick Release Disconnect Coupling Coupler, Air Hose Adapter 1/8 Condition: Brand new The quick-release action allows you to quickly change airbrushes when you use multiple airbrushes with a single air supply hose. Mounts inline between the Airbrush and Air hose. 1/8 BSP Easy-to-use, simply pull back the spring-loaded sleeve and the fitting separates into two pieces.