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OLR is a rectangular overflow unit for installation directly onto a wall. OLR consists of two sound-attenuating baffles, which are mounted on either side of the wall.

OLR can be connected by means of the accessory OLRZ which is a perforated telescope wall sleeve, which ensures excellent noise reduction. The OLRZ must be ordered seperately.

  • High capacity
  • Sound-attenuating baffles
  • Horizontal or vertical installation
  • Optional perforated telescope wall sleeve