The Paasche airbrush bottle assembly makes airbrush spraying and painting smooth and efficient. This airbrush assembly kit is compatible with a wide range of airbrushes including VL, SI, MIL, and TS airbrushes. In addition, it fits many other double-action airbrushes. Its clear-glass make lets you keep a check on the amount of paint inside. A metal cover assembly ensures a snug and secure fit. This airbrush bottle has a capacity of 3 ounces.