LEGO PART 5102C11 PNEUMATIC HOSE 4MM D 11L/8.8CM BLACK £0.99 edupass.io
Pneumatic Tube (Hose) : Original Box 5102-1 | BrickLink
Lego 4x Pneumatique Pneumatic hose connector T axe durite gris foncé 99021 NEUF US $0.99 esenttia.co
Quickun Pneumatic Tubing 6mm x 4mm PU Polyurethane Tube Air Hose Line for Air Compressor Fitting or Fluid Transfer (Black 32.8ft/10Meters) - - Amazon.com
Moc Parts Pneumatic Hose Air Pump Push Rod Putter Switch Piston Air Tank Pump Compatible With Legoeds Pneumatic Building Blocks - Iot Accessories - AliExpress
LEGO Blue 4mm Diameter Pneumatic Hose 27.2 cm | Brick Owl - LEGO Marketplace
Pneumatic Hose Connector with Axle Connector : Part 99021 | BrickLink