SKU: 83575050009

AC Infinity Backdraft Damper Ducting Insert 4-Inch Black Galvanized

$36.89 $40.99
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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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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    4.2 ★★★★★
    Based on 19 reviews
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    Product Reviews
    D
    Verified Purchase
    Debbie Grant
    Port Orchard, US
    ★★★★★ 5
    Super soft blanket!
    Color: Frosty Purple, Size: Twin(60"x80")
    Absolutely love this blanket! It’s super soft and so fluffy! It looks amazing on my bed. Love the color too. I got purple and it looks so soft and warming! My grandchildren love it too!!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 26, 2026
    A
    Verified Purchase
    Acs
    New York, US
    ★★★★★ 5
    Super soft and cozy!
    Color: Pink, Size: Twin(60"x80")
    Love it! Super soft, perfect weight. I bought the pink/dusty rose color and it’s beautiful. I washed it once and did held up and didn’t shed. I will update my review if it starts to fall apart, but so far, very happy with my purchase. The throw blanket seems to be good quality, great price… did I mention I love it?
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 14, 2025
    I
    Verified Purchase
    Ilene Cullman
    Fort Morgan, US
    ★★★★★ 5
    Soft and comfortable for my mom
    This was a perfect gift for my mom. She loves it. It’s very soft and uncomfortable a good weight not too heavy not to light.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 31, 2026
    D
    Verified Purchase
    DCL
    Charlottesville, US
    ★★★★★ 4
    Very nice.
    Color: Tie-dye Beige, Size: Throw(50"x60")
    Super soft the colors are lovely, a bit pricey but looks great at the end of the bed.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 13, 2026
    T
    Verified Purchase
    Todd Giesen
    Grantham, US
    ★★★★★ 5
    Delivers Perfectly
    Color: Tie-dye Beige, Size: Twin(60"x80")
    Beautiful, fluffy, and comfy.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 27, 2026

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