I needed a Y Duct so I could run my A/C with my Laser and hopefully use the exhaust air from the A/C to push more air out of my laser enclosure. It's 120mm exit, 120mm inlet with an 80mm side inlet.
I printed it on my FLSUN Super Racer with 30% gyroid infill, and 4 walls. It's pretty solid, I'm super happy with it and I hope it'll help someone else.
The author marked this model as their own original creation.