Air Coupler

This is my first designed that I've published so far. This is functional but be careful not over tighten threads or it will break. I have printed a few of these so far and would recommend higher print temperature for better adhesion. Print at 78% for 1/4 thread. 3d Modeling on Design Sparks.
Air coupler is plastic after all so exercise caution and use at your own risk
*newest update, Air coupler type C.
let me know how it works :)