- This page is about Essentia Tube from Thaumcraft 4. For other uses, see Essentia Tube.
The Essentia Tube is a block added by Thaumcraft 4. It is used to transport essentia between containers and/or devices.
— Thaumonomicon (truncated)
You have unlocked the key to creating stable and relatively leak-free tubing. While mundane chemicals can be transported in glass, certain types of essentia either dissolve or simply pass right through it. By wrapping the glass in iron and treating it with quicksilver you have managed to protect it from even the most volatile types of essentia. Gold fittings finish off the piping system and make it visually appealing.
The tubes can be connected to all manner of alchemical devices, though warded jars and alembics are their primary targets.
Essentia flows through the tubes whenever something is connected to them that can accept it, like warded jars.