Specifications:
Rexroth strut profiles are designed to function as compressed-air leads and reservoirs. The hollow chambers or central holes within the profiles facilitate this function. Specific profiles include 45x90L, 45x90L 2N, and 45x90L 3NVS.

Procedures:
Profiles can be closed at the ends using a flanged plate (refer to page 5-3). Compressed-air intake or discharge can occur at the flanged plate, connection piece, or connection screw fitting (refer to page 5-4). Profiles can be connected in an air-tight manner using longitudinal end connectors or T-connectors (refer to pages 5-6 and 5-5).

Recommendations:
For applications requiring higher leak-tightness, such as underwater applications, the use of heavy-duty profiles is recommended.

Key Data:
- Profile 45x90L: 8.8 cm²
- Profile 45x90: 7.9 cm²
- Profile 45x180: 9 cm²
- Profile 90x90L: 33 cm²
- Profile 90x180L: 29 cm²

Additional Information:
Air-supply elements are detailed on page 2-40, with further specifications and configurations listed on pages 2-41, 2-43, and 2-45.