Product description

The back draft shutter has flaps made from a silicone type material which is flexible to the touch. The big advantage to this product is that it has a low resistance to the airflow of the fan while been silent when the wind forces it shut.

Key features

• 100mm diameter
• Plastic construction with silicone flaps
• Silent
• Stops any back draughts from intermittent fans
• Free delivery

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