Search  for anything...
FRESH SPEED

4 Inch Professional Backdraft Damper Shutter Connector Duct

  • Based on 319 reviews
Condition: New
Checking for the best price...
$11.99 Why this price?
Save $4.99 was $16.98

Buy Now, Pay Later

As low as $2 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Sep 1
Order within 5 hours and 28 minutes
Available payment plans shown during checkout

Recently Viewed

Size: 4 Inch


Features

  • HOME IMPROVEMENT Perfect for use in AC, dryer vent, heating ducts, extractor or range hoods. Especially suitable for using with exhaust fan, bathroom fan, blower fan, attic fan.
  • EASY INSTALLATIONThe duct damper opens and closes automatically, allowing only one-directional airflow. The damper blades open only in the outflowing air direction when the shutter is installed. The duct valve for 4-inch duct best installed in a horizontal position and inserted fully into the duct. This also applies to vertical installation.
  • GREAT FOR HOME USE The foam sealing on the damper reduces operation noise and provides extra air tightness. The back draught valve can be inserted into a non-flexible metal or plastic duct directly, but for flexible duct you need to use steel duct clamps to secure the backdraft damper.
  • SUPPORT GUARANTEEWe have a 24-month warranty. Feel free to contact us with any questions. We will reply within 8 hours.

Brand: FRESH SPEED


Color: Silver


Electric fan design: Blower


Power Source: Corded Electric


Style: Modern


Room Type: Bathroom


Special Feature: Bladeless


Recommended Uses For Product: Drying, Exhausting, Ventilating


Material: Alloy Steel, Aluminum, Plastic, Stainless Steel


Item Weight: 0.16 Kilograms


Brand: FRESH SPEED


Color: Silver


Electric fan design: Blower


Power Source: Corded Electric


Style: Modern


Room Type: Bathroom


Special Feature: Bladeless


Recommended Uses For Product: Drying, Exhausting, Ventilating


Material: Alloy Steel, Aluminum, Plastic, Stainless Steel


Item Weight: 0.16 Kilograms


Indoor/Outdoor Usage: Indoor


Control Method: Touch


Blade Material: Plastic


Is Cordless?: No


Number of Power Levels: 1


UPC: 752349625023


Size: 4 Inch


Package Dimensions: 4.17 x 4.13 x 3.9 inches


Item Weight: 5.6 ounces


Item model number: 81923a7b-8362-428d-b64b-34db0f66e1ed


Date First Available: June 2, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Sep 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Quality device
Quality device - using to vent my garage into the attic
Reviewed in the United States on April 18, 2025 by regine
    • Well-built
The whole thing feels very sturdy. The movable damper opens easily and closes well. It creates a good seal.
Reviewed in the United States on January 26, 2025 by Scott
    • Reverse flow preventer
Works to prevent back flow. Must be careful to correctly index or won't work properly.
Reviewed in the United States on February 18, 2025 by Chris
    • Product is as described
Works like it should and received just in time.
Reviewed in the United States on February 2, 2025 by David Kosvanec
    • Only for Dryer Vents
The side which the damper halves open to is too short to fasten with screws. The damper swings far, and my 1/2 inch zip screws (on six-inch duct) were too long to allow the damper halves to swing unimpeded. If the people who built this thing added another inch to the 'downstream' side, this would be a useful product. However, since screws are forbidden in dryer vent installations (they snag lint, clog the pipe, and pose a fire danger), this product would be fine for that. But for anything where code calls for screws, don't buy this thing. ... show more
Reviewed in the United States on October 25, 2022 by Gordo Zim
    • product was fine, we just ordered the wrong size
Size: 8 Inch
the product itself was fine but the installers said it was too large. We had to return and order a smaller size to fit.
Reviewed in the United States on December 19, 2024 by Sam
    • very good construction
Size: 4 Inch
priced right, arrived fast and with excellent construcgtion.
Reviewed in the United States on January 4, 2025 by Douglas T.
    • The right stuff
I am an HVAC tech. These dampers are solid and dont get stuck in open position.
Reviewed in the United States on October 28, 2024 by Matt

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...