aluminum ventilation grill / rectangular / square / commercial
781D-RC3 MLL-Hamburg



  • Material:


  • Shape:

    rectangular, square

  • Other characteristics:

    commercial, white, custom

  • Width:

    Min.: 985 mm

    Max.: 2,000 mm

  • Length:

    Min.: 985 mm

    Max.: 2,000 mm


The weather protection grid, System 781D-RC3, from MLL Hamburg, is a burglar-resistant, RC3-tested ventilation grid made of aluminium with a free ventilation cross section of 36%. You can gain security and still not have to do without fresh air or ventilation in a room or building. Thanks to the reinforced MLL slats, penetration into the inside is prevented to the greatest extent possible. The system 781D-RC3 is equipped with an elliptical slat in a reinforced Frame 702.

Other MLL-Hamburg products

Ventilation grids