Download 3D model
This 3D model is to be printed at home.
Those caps are used to block the holes of your device to avoid the light to go through in case some holes are not in use.
You can download the 3D model of these caps for water hole below:3D Model Cap for Plant Hole
Do not block the water hole as the plants do need to have access to oxygen.
We would like to give a special thanks to Alexander from Plantui community that created this model.