SKU: 83575050009

AC Infinity Backdraft Damper Ducting Insert 4-Inch Black Galvanized

$36.89 $40.99
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Description

AC Infinity Backdraft Damper Ducting Insert 4-Inch Black GalvanizedDescription An antidraft duct insert designed for use with range hoods, bathroom fans and other home HVAC applications. Features outer rubber gaskets that create an airtight seal and grip between the damper and ducts. Mounts horizontally or vertically to prevent backflow and debris from entering ducting. Galvanized steel body with spring loaded aluminum damper blades that open with minimal airflow. Fit for 4 in. Duct Openings Product Length: 5. 03

Description
  • An antidraft duct insert designed for use with range hoods, bathroom fans and other home HVAC applications.

  • Features outer rubber gaskets that create an airtight seal and grip between the damper and ducts.

  • Mounts horizontally or vertically to prevent backflow and debris from entering ducting.

  • Galvanized steel body with spring-loaded aluminum damper blades that open with minimal airflow.

  • Fit for 4 in. Duct Openings | Product Length: 5.03 inches | Finish: Powder Coat

  • Product Description: A ventilation ducting tool designed for insertion into 4" ducting to prevent cold drafts and debris from flowing into ventilation systems. Built to be embedded in ducts, the backdraft damper is made of sturdy galvanized steel and features two rings of outer rubber gaskets. This enables it to grip your ducting with an airtight seal in either a horizontal or vertical orientation. The butterfly damper blades are made of aluminum and are equipped with a light spring that folds with minimal airflow.

  • Applications: The spring-loaded antidraft damper is built for heavy-duty performance in applications like overhead range hoods in kitchens, bathroom fans and tumble dryers. It can be fully or partially inserted into your duct work using the rubber rings to hold itself in place. Other one-way airflow uses include keep pilot lights burning in water heaters and keeping debris from entering inline duct fans in grow tents.
    • Specifications
  • Product Identification
  • Manufacturer: AC Infinity Inc.
  • Product Name: Backdraft Damper, 4"
  • Product Model: AC-BDD4-B
  • UPC Code: 819137021303
  • Product and Mounting Dimensions
  • Duct Opening Size: 4"
  • Product Length: 5.03 in. (12.8 cm)
  • Whole Body Material: Steel
  • Shutter Material: Aluminum
  • Color: Black
  • Finish: Powder Coat
    • Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 83575050009

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    4.3 ★★★★★
    Based on 1049 reviews
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    Product Reviews
    A
    Verified Purchase
    Alexandria
    Louisville, US
    ★★★★★ 5
    Work great
    Item Package Quantity: 6, Color: Black
    Relatively strong hooks. The metal I have them on is thin so the magnets arent as steady as I hoped but thats my fault not the hooks. Ample hook space and solidly built
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 23, 2024
    A
    Verified Purchase
    Amazon Customer
    Louisville, US
    ★★★★★ 5
    You need these!
    Item Package Quantity: 4, Color: Black
    These are not really “industrial strength” but they work great and are decent quality, especially for the price. I bought them to use on a sheet metal barn and they hold halters, rakes and other supplies with ease. Out of curiosity I did toss a dewalt drill in one and it held even though I ordered the medium size and the drill didn’t fit super well.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on August 6, 2025
    K
    Verified Purchase
    K. Nguyen
    Omaha, US
    ★★★★★ 5
    Very useful tools or helmets hanger.
    These are quite useful and hold anything that’s less than 10lb. I think it can hold heavier items but I think it’s best to keep it light and the magnet strong enough to make it very convenient to affix it to any metal cabinet or poles.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on August 7, 2025
    J
    Verified Purchase
    Julie Fleming
    Boise, US
    ★★★★★ 1
    Magnet strength is weak AF
    Item Package Quantity: 30, Color: Black
    Magnet strength is absolutely terrible! I was hoping that they would be strong against my shipping container as the product suggests, but I put a item on it that barely weighs 10 lb and it started sliding down the wall. The magnets are not strong at all!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 6, 2026
    B
    Verified Purchase
    BGT 20000
    Port Orchard, US
    ★★★★★ 5
    Great Hooks!
    Item Package Quantity: 10, Color: Red
    Strong Magnets! Work Great! Well Built!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 7, 2025

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