Fine 1mm (.040") size Aircap Set for finer atomisation. Suitable for most water-based lacquers and shading. Medium output 1.5mm (.60") Aircap Set for slightly heavier coats with standard paints. High output 1.8mm (.070") Aircap Set for faster coverage of large areas with any type of paint. Extra high output 2.0mm (.078"). Great for spraying large surfaces such as walls with emulsions. Expect some slight texture. For M-Model spray gun only - does not fit any other Fuji spray guns.