Hydro Halo
thingiverse
Simple HydroHalo, Supports a 4mm internal diameter hose connector. I used a syringe to clean up the outlet holes were all the same diameter.
Download Model from thingiverse
With this file you will be able to print Hydro Halo with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Hydro Halo.