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This item is eligible for return within 30 days of receipt
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.
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Availability:
15 left in stock
Arrives
Tuesday, Jul 15
Recently Viewed
Size: 6 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 24 hours.
Product Dimensions: 6.1 x 6.1 x 3.7 inches
Item Weight: 9.1 ounces
Date First Available: June 2, 2021
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Jul 15
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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- Financing through Apple Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Size: 6 Inch
These worked great for isolating 2 separate exhaust fans
Reviewed in the United States 🇺🇸 on February 26, 2023 by Robert C.
Size: 8 Inch
Installed a new exhaust fan. There was no backdraft damper included in the box. Apparently they are extra. This was a perfect fit. Mine is 8”.
Reviewed in the United States 🇺🇸 on January 19, 2023 by Dawn F. Dawn F.
Funky smells don't blow up my dryer hose and make my clothes smell funky anymore after installing it.
Reviewed in the United States 🇺🇸 on January 5, 2023 by Jaimie Baird
Size: 6 Inch
Does not fit well into standard 6 inch ducting. Had to really manipulate the duct ends. The real issue is the spring tension for the shutters. Too stiff. You need significant air velocity and pressure for them to open enough. These will really reduce the airflow if you don't alter the spring and bend them to be less restrictive.
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Reviewed in the United States 🇺🇸 on January 2, 2023 by Dw
Size: 6 Inch
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.
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Reviewed in the United States 🇺🇸 on October 25, 2022 by Gordo Zim
Size: 6 Inch
For 22 years I could feel winter cold air coming through the kitchen exhaust vent, same for hot air in the summer. I refreshed the kitchen and replaced the exhaust vent, the HD rep also suggested to replace the backdraft vent, but they were out of stock for a few days. I didn’t even know this device existed. It took a little help from a knowing individual, tin snip, a few sheet metal screws, and silver tape. Hugh difference.
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Reviewed in the United States 🇺🇸 on August 30, 2022 by OldJoe
I felt the damper blades required too much back pressure. I used a dust collection Blastgate instead.
Reviewed in the United States 🇺🇸 on December 5, 2022 by Ron
Size: 6 Inch
It was exactly what I needed. I installed this on the end of the exit for my stovetop Downflow air exhaust.
Reviewed in the United States 🇺🇸 on October 8, 2022 by Christopher