
Plenum boxes for swirl diffusers and air diffusers
Our extensive range of plenum boxes is optimized for all Wildeboer swirl diffusers and linear air diffusers. Each plenum box is thoroughly measured with the appropriate ceiling air diffusers and ensures smooth operation in every combination. The different heights and variable connection options guarantee flexible application possibilities.
Technical details
- Easy installation, safe operation with all Wildeboer swirl diffusers and air diffusers
- Optimized for low installation heights
- Suitable for installation in closed ceiling systems, grid ceilings, and free-hanging
- Made of galvanized sheet steel
- Optional damper and special air deflector plates available for optimum air distribution with minimal flow noise
Declarations & proofs

Product details
Wildeboer plenum boxes are optimized for all swirl diffusers and linear air diffusers available in our range. They are made of galvanized sheet steel and are also available powder-coated.
Specially measured for Wildeboer swirl diffusers and air diffusers
Each plenum box is precisely measured with the appropriate swirl diffusers and air diffusers and ensures smooth operation in every combination.
Design
The plenum boxes are available in square and round designs for connection to Wildeboer ceiling air diffusers. One or two side connection pieces (square only) or a connection from above are available as standard.
Optional damper blades and special air deflector plates for optimum air distribution with low flow noise, especially for supply air, ensure maximum comfort and well-being for room users.
When using a damper blade, the volume flow can be adjusted without dismantling the swirl diffuser or air diffuser. Holes for suspension from the suspended ceiling and concealed central fastening are included.
The plenum boxes for ceiling air diffusers are suitable for installation in closed ceiling systems, grid ceilings and free-hanging.
The different heights and the variable connection options for supply or exhaust air ducts allow flexible application possibilities.
Plenum boxes suitable for swirl diffusers DX, DV, DT, DSQ, LFQ
- K1 square with side connection spigot
- K2 square with two side connection spigots for high volume flows with minimum box height
- K3 square with top connection spigot
Plenum boxes suitable for diffusers DX, DV, DT
- R1 round with side connection spigot
- R3 round with top connection spigot
Plenum boxes suitable for swirl diffusers DF
- K4 square with side connection spigot
Product
All plenum boxes available from Wildeboer have a hygiene certificate from an independent testing institute.