In the meantime, there is no need to know about it.

• For attaching ducts of the corresponding diameter to the mounting surface.
• Ease of installation is carried out due to the simplicity of the holder design.
• To strengthen the structure, the manufacturer recommends using a plastic tie-clamp: 350 PX, 450 PX.
• Available in 3 diameters. Size 15.16 RDH can be used in two systems at once: 150 and 160.