Grilles with shutters
Grille with gravity shutters is designed to allow an air by ventilation system flow only in one way. When the fan put an air out of the building – feathers rise to make an air flow and when a fan didnt work – a feathers falls and close a flow between inside and outside to resist getting cold air, dirt and insects to the room. This grille model comes in 4 circular collar sizes, allowing for convenient installation of ventilation systems in the most common sizes.
Ø 100
Ø 120
Ø 125
Ø 150
Available colors:
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