Description
PRODUCT FEATURES
Ventilation grille the type external grille(sometimes called as weather louver) is designed to take in air from the exterior or to exhaust used air for comfort zones and industrial zones.
1. Blades are weather proof design to prevent rains from outside.
2. For installation in walls.
3. For installation in ceilings.
4. Made of extruded aluminum, powder coated.
5. Concealed clip fixing or countersunk holes screw fixing.
6. With galvanized insect mesh 4×4 fixed to the back side of the grille.
7. The air isn’t able to flow into room if the indoor pressure is smaller than outdoor pressure. It has single-track non-return function.
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