Hopper ducts is a mod that aims to improve functionality and versatility when using hoppers in Minecraft, adding the functionality of item filtering and material distribution.

The mod allows us to create filters that will allow us to define which objects or materials we want or do not want to go through the hopper. This will help us classify resources and items that pass through one or more hoppers. On the other hand, we have the possibility of manufacturing pipes for our hoppers, which will allow us more versatility and transport the contents of a hopper to a more distant place, being able to create more complex and comfortable systems.