Awenta 4" inch / 100 mm External Gravity Grille - Black Air Vent Cover with Shutters - Ducting Exhaust Hood Vent. Extractor Fan Back Draught Covers with Flaps, Outdoor Wall Ventilation Air Cap.
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- Cover shutter flaps serves to shield your ventilation duct from unpleasant odors, noise, backdraft, rain, wind, snow and the entry of objects or pests during periods of inactivity
- Installation is both simple and secure. Just push-fit the duct and fittings together. The Gravity Grille features pre-drilled holes for screwing and attaching it to the wall, ensuring a stable fixation at the ventilation outlet's end. Screws are included.
- The grille features four non-return gravity flap outlets that allow air to flow out. Its shutter mechanism operates by opening the blades to facilitate the passage of air. When the extractor fan or ventilation system is not in use, the shutter flaps close automatically.
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