customizeable module compatible with modular hydroponic tower

I printed thing:3405964 but didn't want to waste a bunch of filament on netcups. This customizable (with openscad) module holds 5 standard 2 inch netcups and is compatible with existing towers based on the modular hydroponic tower.
The 3-plant module is a direct copy of the modular hydroponic tower. It is imported and most of its geometry removed to ensure compatible threads.