October 12, 2025
Description
A simple 2-inch foam collar for hydroponic systems — replaces standard net pots.
Cut from Harbor Freight anti-fatigue foam mats, each piece gently holds your plant stem in place.
Works with most 2" hydroponic openings
Laser cut from foam floor mats
Great for seedlings and small plants
Use alone or with my 2" collar adapter (shown in picture) https://www.printables.com/model/1442354-2-inch-hydroponic-collar-adapters-flat-curved-vers
Material: Harbor Freight Foam Mats
If you like this project, toss a coffee my way — it keeps the printer fed with filament and my workshop stocked with nuts and bolts!
https://buymeacoffee.com/jvdesign
License:
Creative Commons — Public Domain
JVarhol
