I also wanted to connect a hose to my ozone generator so I found this great connector from vvillagrasa. I printed it twice and both times it failed where the connector transitions from strait to angled. I very quickly plugged it in to tinkercad and made it a little thicker. It isn't near as clean as the original, (since I am a newbie) but if you have problems with the strength, give this one a try. I printed mine at 100 infill with PETG for the strength.

Creality

Ender 3 Pro

No

No

.2

100

None