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🚫❄️ Stop drafts, save energy, breathe better!
This 4-inch backdraft damper features a galvanized steel body, aluminum flap leaves, and a stainless steel spring for durability and corrosion resistance. Designed for easy push-in installation in ventilation ducts, it prevents unwanted air backflow and drafts, improving HVAC efficiency across residential, commercial, and industrial applications. Compatible with flexible and rigid ducts (excluding plastic), it offers a reliable, low-maintenance solution to optimize airflow and reduce energy loss.
| ASIN | B099R69LM2 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #395,605 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,015 in HVAC Ducting |
| Customer Reviews | 4.5 4.5 out of 5 stars (148) |
| Date First Available | July 19, 2021 |
| Item Package Quantity | 1 |
| Item Weight | 5 ounces |
| Manufacturer | dojobkinb |
| Package Dimensions | 5.2 x 4.13 x 3.7 inches |
| Size | 4 Inch |
S**E
Works!
This seems to work as described. The cold air seeping in through the dryer vent has been significantly reduced. I had to work a bit on the installation because this requires a female fitting on both ends, but a little time with a pair of pliers modified the old elbow enough to make it work. It was WAY cheaper than installing the whole outlet. Overall, it fit and was easy to install. This is what I was looking for.
M**Y
Good backdraft seal
I like everything about this product, and it was as described on Amazon. One thing to consider though, is that the duct connected on both sides has to be female, that way there is no restriction on the flap opening.
D**S
Smooth operation
Quick install, the vent was well built and the operation was very smooth.
S**Z
Bought to combine bathroom fans to 1 roof vent
Doesn't fully close, but good enough for my need
J**R
Easy to install and no noise
Installed this about a year ago, works great and you never hear it. Best part is that it really does stop backdrafts when he wind is blowing. NOTE: my hood came with a bad one with no seal. I ended up having to remove it cause it would still flop around and make noise.
B**N
used for my clothes dryer
i have 2 dryers installed, and venting them out in summer and using the warmth in the winter.. this baffle fits perfectly with the flexible metalish ducking for dryer vernt.. i put it inline..works perfectly.. dryer produces enough air to open it, and works great with my second dryer working too.. even as a gasket inside for the baffell.. not to be used for heating, fire, or direct burn.. the dryer vent is ok.. but i would not use this for anything hotter than i a dryer heat
A**C
Works well when installed in correct direction, LOL!
The product arrived in excellent condition, functioning as expected. While it feels slightly flimsy, it delivers reliable performance. Compared to similar items I considered it offers great value for the price. Overall, it's a worthwhile purchase that balances quality and affordability effectively. I'm satisfied with its performance and condition. Thanks!
B**R
Doors (flaps) got hung up. Stayed open and would not close
The flaps got stuck after short period of time and basically stayed open
Trustpilot
1 month ago
3 weeks ago