Tubes
Items inserted into a tube network (e.g. from a hopper) will be routed to the nearest valid inventory adjacent to the tube network.
More Tubes and Filters
Tubing Pliers
Tubing Pliers can be used to connect two tube blocks not adjacent to each other.
Shunts
Shunts immediately eject any items inserted into them from their output face. They appear as separate inventories to tube networks.
Extractors
Extractors extract a stack of items from neighboring inventories when powered, inserting the items into adjacent blocks or dispensing them into the world.
Color Tubes
Tubes can be dyed in 16 colors. Colored tubes will only connect to tubes of the same color (and to the default tubes).
Structures
Tubes fully support structure pieces and can be used in rotated and mirrored structure pieces (even when connected via tubing pliers).
Osmosis Filters
Osmosis Filters automatically extract blocks from an adjacent inventory. They can face any of the six directions, and can be set to only accept one type of item.
Filters
Filters act like shunts, but only accept one type of item.
Redstone Tubes
Redstone Tubes briefly emit a redstone signal while items travel through them.
Loaders
Loaders provide an inventory menu; any items placed into this menu will immediately be dispensed from the loader's output face.