| Pack quantity | 5 |
| Brand | Blauberg |
| Product diameter | 125mm |
| Product height | 0.1mm |
| Product length | 0.13mm |
| Product width | 0.13mm |
Functionality:
Automatically shuts off air ducts.
Prevents back drafting when the fan is off.
Compatibility:
Fits Ø 100 to 315 mm round air ducts.
Design:
Durable galvanized steel case.
Spring-loaded aluminum blades open with air pressure and close with a spring.
Mounting:
Secures with clamps to round ducts.
Maintains a vertical blade axis.
Installation:
Easily integrates into ventilation systems respecting air flow direction.
5-Inch Circular Inline Backdraft Damper - Butterfly Action Draft Shutter, 125mm - Airflow Control
£23
From DIY at B&Q
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