Return Grille

The return or extraction grille is particularly applied on walls or ceilings. It has a set of fixed blades at 45º, thus being appropriate for the return of air on air-conditioning, ventilation and heating applications. It may also be supplied with a filter holder which prevents the return of the air flow with a high concentration of particles and other substances. Filter maintenance operations are carried out by way of two knurled nuts on the front of the grille. The egg crate grille is also suitable for the return of air.