Pressure Tubes are the primary device in for transporting compressed air between compressors and machines.
Unconnected tubes will leak air! However, the sides of a tube can be toggled open or shut by right-clicking with a Pneumatic Wrench/$. Wrenches from other mods may also work.
Tubes!

Two Pressure Tubes with a Pressure Gauge/$ connecting an Air Compressor/$ and Air Cannon/$
Pressure Tubes can be fitted with Tube Modules/$, attachable components which add various types of functionality to the tube. See the individual pages for each module for more information.
Pressure Tubes can be concealed with a Camouflage Applicator/$.
There are three tiers/$ of tube:
• Tier 1 tubes can contain up to 5 bar of pressure, and have a capacity of 1000mL of air.
• Tier 1.5 (Reinforced) tubes can handle up to 10 bar of pressure and also have a capacity of 1000mL.
• Tier 2 (Advanced) tubes can handle up to 20 bar of pressure and have a capacity of 4000mL of air.
Crafting a Pressure Tube