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🔄 Stop backdrafts before they start — airflow perfected with zero hassle!
The AC Infinity 150mm Backdraft Damper is a premium one-way airflow insert designed for 6-inch duct systems. Featuring a galvanized steel body with a powder coat finish and spring-loaded aluminum blades, it ensures minimal airflow resistance while preventing backflow and debris entry. Dual rubber gaskets provide an airtight seal, and its versatile horizontal or vertical mounting suits a variety of HVAC applications including kitchen hoods, bathroom fans, and grow tents.

| ASIN | B0842XLY96 |
| Best Sellers Rank | 31,046 in DIY & Tools ( See Top 100 in DIY & Tools ) 86 in Ducting |
| Brand | AC Infinity |
| Colour | Black |
| Country of Origin | China |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,929) |
| Exterior Finish | Powder Coat |
| Global Trade Identification Number | 00819137021310 |
| Included Components | Backdraft Damper |
| Item Dimensions | 13 x 14.7 x 5.8 centimetres |
| Item Highlight | Antidraft Duct Insert w/ Airtight Seal Spring-Loaded Aluminum Folding Blades for Ducting in Range Hoods Bathroom Fans 6-Inch |
| Item Weight | 1.32 Pounds |
| Manufacturer | AC Infinity |
| Material | Alloy Steel, Aluminium |
| Model Number | AC-BDD6-B |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Part Number | AC-BDD6-B |
| Set Name | Backdraft Damper (1 piece) |
| Size | 6 Inch |
| Thread Type | BSP |
| UPC | 819137021310 |
| Unit Count | 1.0 count |
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