Air Distribution Boxes

11. 11. 2025
We are replacing existing air distribution boxes for PE ducts of 75mm diam. with a new flexible system.

The plastic boxes are designed for interconnecting separate branches of air ducts and for transition to flexible ducting of 125 mm diam., flat square ducts or outlet disk valves.

The basic box 8x75/125 mm connects to the ducts running from the HRV unit. It then divides the air flow into a larger number of branches with a diameter of 75 mm. The basic version has 8 outlets, unnecessary outlets can be plugged with a blanking plug - 2 pcs are included in the package.

This box can be variably expanded by two more branches using the extension kit. Also repeatedly.
Kit of a reducer and a lid is intended for transition from flat square ducting, the lid is used to blank the 125mm opening and the reducer replaces two 75mm outlets on one side of the box.
The ceiling outlet enables transition from 75mm diam. PE ducting to a 125mm disk valve.  Either both inlets can be used, or one can be blanked.

Along with the boxes, we are also adding an adapter for crossing up to 3 branches of PE ducts of 75 mm diam. The adapters are placed with the central lowered part across each other and the individual branches are connected to their ends.

System advantages

  • flexibility – the basic box can be expanded as desired using expansion kits
  • hygienic protection – the coating of silver microparticles prevents the formation of mold and bacteria
  • long service life

Technical Data Sheet| Show (PDF 1.1 MB)