Master Airbrush Brand 1/4" BSP Male to 1/4" BSP Male Fitting Conversion Adapter Nipple, Connector for Airbrush Hoses and Compressors" /> Master Airbrush Brand Airbrush Fitting Conversion Adapter for compressors, airbrushes, hoses, hose splitters and manifolds Airbrush Fitting Connector Adapter Nipple: 1/4" BSP Male to 1/4" BSP Male Screw the adapters 1/4" BSP Male thread side into a 1/4" BSP female fitting to convert it to a 1/4" BSP male size thread