Domus Gravity Ventilation Grille - 100mm - Brown

No, this is a gravity-operated grille. It must be mounted on a vertical wall so gravity can effectively close the shutter.

It is designed for standard 100mm or 4-inch round ducting.

Yes, it is constructed from durable materials meant for exterior use.

The product features a cover or design that conceals the fixing points once the front section is snapped or screwed into place.

The gravity shutter creates a seal when closed, which helps keep out pests, though it is not a fine-mesh insect screen.

Check that the grille is installed perfectly level, as tilting can prevent gravity from closing the blades.

Ensure the ducting behind the grille is properly supported to reduce vibrations, or consider installing a localized backdraught damper further up the duct line.