Airbrush Siphon Bottle Cap

This is a cap for airbrush siphon bottles. There are 2 versions in the print profile: PETG and TPU. They are different sizes to adjust for the properties of each filament, so make sure to use the correct one for your filament. The TPU version is preferable, but the PETG one fits snugly and works as well. I put this together after I ordered siphon bottles and they didn't come with caps. Hopefully this is helpful to someone else as well.