SKU: 83575050009

AC Infinity Backdraft Damper Ducting Insert 4-Inch Black Galvanized

$36.89 $40.99
Save 10%
No.2 Bestseller on sm10m.ch >

Pay in installments of $10.25 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 23 - Sep 28

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

    Discover Niche Categories That Outsell

    Top-Converting Item to Boost Your Average Order

    4.5 ★★★★★
    Based on 28 reviews
    Sort
    Highest Rating
    Newest First
    Oldest First
    Product Reviews
    A
    Verified Purchase
    Amazon Customer
    Louisville, US
    ★★★★★ 5
    Great shirt!
    Color: Light Green-flower, Size: 3X-Large
    Good quality shirt!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 17, 2026
    G
    Verified Purchase
    Greg Bones
    San Leandro, US
    ★★★★★ 4
    Looks great
    Looks and fits great true to size
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 5, 2026
    V
    Verified Purchase
    Val
    New York, US
    ★★★★★ 3
    Extra extra small
    Color: A-black, Size: XX-Large
    Sizing is considerably off. I ordered a 2X for my 6’4” husband based on the measurement chart. Based on the way it fit I don’t think a 3X would fit. Fortunately a teenager in the family can wear it.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 24, 2026
    D
    Verified Purchase
    Debbie Lucas
    Port Orchard, US
    ★★★★★ 5
    Great shirt
    Color: Royal Blue, Size: XX-Large
    The shirt was beauntiful. Lightweight which is perfect for my husband and it matches my dress for a wedding we’re going too
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 29, 2026
    F
    Verified Purchase
    Francine A. Harrington
    Dallas, US
    ★★★★★ 5
    Green 💚
    Color: Dark Green, Size: X-Large
    Beautiful color and fits my husband perfectly.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 25, 2026

    recommand products

    Magic: The Gathering - Universes Beyond: Marvel's Spiderman - Collector Booster Box
    227.77
    Dragon Shield - Sanctuary Slipcase Binder - Black
    23.17
    Ultimate Guard - Boulder Deck Case - 100+ Standard Size - Frosted
    11.95
    Magic: The Gathering - Edge of Eternities - Prerelease Pack
    25.74
    One Piece Card Game: Starter Deck - Marshall.D.Teach (ST-27)
    20.00