• Rexroth strut profiles can be used as compressed-air
  leads and reservoirs. The hollow chambers or central
  holes are used
• Flanged plate for end closing of profiles (p. 5-3)
• Compressed-air intake or discharge at the flanged plate,
  connection piece, or connection screw fitting (p. 5-4)
• Air-tight connecting of profiles with longitudinal end
  connectors or T-connectors (p. 5-6, 5-5)
• The use of the heavy-duty profiles is preferable in the
  case of more demanding leak-tightness requirements
  (e.g. for underwater applications)

More Information About Air-Supply Elements