Air Lift pump element

I needed an air dispersion element for various aquarium projects. I used the turbo exhauster and modified its connections to suit my projects. What I really like about the turbo exhauster is the airline uses a female connection instead of a male connection. Male connections for airlines with 3D printing have not worked for me in the past. Using a female connection is much stronger. Before inserting the airline into the connector I put it in hot water (120F) and then put it into a tee fitting and let it cool. This causes the airline end to bell out a little bit and have a tighter fit in the female inlet.

One connection used a 1/2" FNPT fitting on the top. The bottom is just an annulus because I added it to another model. I got the FNPT fitting from https://www.thingiverse.com/thing:4444380 and used Prusaslicer to cut it out of the flange.

The other modification uses male slip fittings as the connections on the top and bottom. I got the male slip fittings from https://www.thin