Parametric hydro halo / watering ring
thingiverse
This is a hydro halo / watering ring, inspired by "[Hydro Halo 5mm barb](https://www.thingiverse.com/thing:4690927)". Instead of a hose barb it has a simple friction-fit stem for a 4mm OD silicone tube. I included the OpenSCAD source so you can customize it to your heart's desire.
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