The Snap Module is used in the 3Dponics Snap & Grow System to hold the nutrient solution. It snaps together easily and has openings for the inlet and outlet pipes. Just print multiple copies and connect them with tubing (Note: The end modules will need to be closed off with the Left and Right Covers). You can attach multiple Snap Modules together to create a long chain of individual gardens. Know how to make this part better? Have ideas for new parts? Visit our website (https://www.3dponics.com) and join our Google+ community (https://plus.google.com/u/0/communities/111638904033818784260) to take 3Dponics to the next level!