The DeVilbiss GPi spray gun comes with the specially developed GP1 “High Efficiency” air cap and a choice of 1.4, 1.6 or 1.8mm fluid tips designed to spray a wide range of materials including enamels, synthetics, primers, 2 pack commercial paints as well as materials that demand high or fast application rates.
Bought one last week, cheapest I could find it anywhere globally.
The other nozzle sizes are here: https://airless.com.au/catalogsearch/result/?q=DeVilbiss+GPi
For free!