In my first tower I used the spec'ed PVC pipe and a 3d printed “X” adapter, but it's snowing so for my second tower I designed this leg so I didn't have to go to the store. It's likely overkill… Designed to fit on top of a standard 5 gallon bucket.
For use in this hydroponics tower: https://www.printables.com/model/63055-upgraded-modular-hydroponics-tower-more-compact-st
Print the “28mm_X_pipe_connector” from here: https://cults3d.com/en/3d-model/various/28mm-caravan-rv-sink-water-drain-pipe-connector-fittings
I used the following settings:
Print 4 of this model for the 4 legs to go in the base of the hydroponics tower
It fits pretty tight into the base and tight enough into the X adapter.
Be sure to check out the splash guards to cover the top of the bucket! https://www.printables.com/model/400538-splash-shield-for-hydroponics-tower
The author marked this model as their own original creation.