I've printed the duct with my Artillery Sidewinder X1 itself.
I used Simplify 3D to slice all the parts.
I used Prusa ABS (lime green) and Extrudr GreenTecPro (black).
Support shouldn't be needed but I did some custorm supports on the duct itself for better surface :).
For other users a small advice: Turn off the option for speed reduction on layers below a certain amount of seconds. That will melt the part for the screw on top of the fanduct itself.