[Upgraded] Hon&Guan 8 Inch Duct Backdraft Damper, Draft Blocker One-Way Airflow Ducting Backflow Preventer Duct Draft Blocker, HVAC Inline Fan

Name: [Upgraded] Hon&Guan 8 Inch Duct Backdraft Damper, Draft Blocker One-Way Airflow Ducting Backflow Preventer Duct Draft Blocker, HVAC Inline Fan
Brand: Hon&Guan
SKU: awhd-us-b0dd6sjt9x
Price: 14.30 USD
Availability: InStock

Brand: Hon&Guan

Condition: Used

$14³⁰

$16²³

-12% Save $1⁹³

Updated: 4 days ago

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Description

【Upgrade design】 The 8 inch damper has two new inwardly recessed ribs on the top and bottom, an increase in thickness to 0.6mm, and 3 springs instead of 2, ensuring that the product is more robust and less prone to damage.

【Material】The 8'' backdraft damper and the flap leaves is made of a Galvanized steel to withstand temperatures up to 140°F, the Axis are made of aluminum, while the spring are made of carbon steel

【Installation method】The 8 inch duct damper has an opening of 200 mm and a length of 88 mm. When installed horizontally, the springs should be positioned horizontally to allow for optimal opening and closing

【Wide applications】Back draught valves can be inserted into ventilation ducts which are flexible or non-flexible. Designed for use with range hoods, bathroom fans, kitchen and other home HVAC applications

【Lightweight valve wings】The valve wings open under the pressure created by the airflow; when the air flows in the opposite direction, it is automatically closed under the action of the spring, so as to cut off the flow. Rubber ring ensure 100% closure and quiet closing.

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Product Details

SKU:: awhd-us-b0dd6sjt9x
Country:: US
ASIN:: B0DD6SJT9X

Shopping Smarter

Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?

Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $2 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.

What's the difference between open-box and refurbished?

Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.

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Is it safe to buy refurbished?

Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.