LEGO part 5102c06 - Black Hose, Pneumatic 4mm D. 6L / 4.8cm at BrickScout
Pneumatic drill to wet tap a live water main : r/specializedtools
Equal Tee Pneumatic Stainless Steel Internal Thread Baffle Connector
Pneumatic pipe jacking- Good tools and machinery make work easy - YouTube
LEGO part 5102c07 - Dark Bluish Gray Hose, Pneumatic 4mm D. 7L / 5.6cm at BrickScout
Air Pipe Scissor Pu / Pe Air Pressure Hose Scissor Cutter Cutter Pneumatic Bayonet Cutter Bl For Tube Size 1mm-14mm Od Hose Pipe - Pneumatic Parts - AliExpress