The HMR diffuser box is used for visible installation of reactive ceiling air diffusers. The box is soundproof and equipped with an adjustment damper. The air diffuser is mounted onto the diffuser box using a bayonet fitting.

The diffuser box is available for a duct size of 250 mm:
The full designation is HMR-250/400.

Additional Information

The HMR is equipped with a nipple for pressure measurement.
If needed, the HMR diffuser box can be converted to an HTR box for the installation of active ceiling air diffusers.