🌬️ Stop the backdraft, start fresh airflow – your ventilation’s new best friend!
This 4-inch backdraft damper features a galvanized steel body, aluminum flaps, and a stainless steel spring to prevent reverse airflow in ventilation ducts. Designed for easy push-in installation, it fits most rigid ducts and enhances air quality by stopping backflow in HVAC, exhaust, and heating systems.
| Manufacturer | dojobkinb |
| Item Weight | 4.6 ounces |
| Package Dimensions | 6.38 x 5.04 x 3.66 inches |
| Size | 4 Inch |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |
A**R
Wouldn't do without it
So simple, so useful. I should probably have paid more attention to the instructions - after it was installed I realized I should have turned it 90 degrees . . . oh, well, it seems to be doing the job.
S**.
very good quality
No more rattling in the exhaust vents
S**Z
Bought to combine bathroom fans to 1 roof vent
Doesn't fully close, but good enough for my need
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**R
One way vent
It’s been 2 months since installation. Works as expected. I don’t hear any flapping of the vent when the fan is turned on or off either.
R**A
Awesome
Awesome Amazonian!!!
Z**C
Does as it should
Easy to install
R**T
Exhaust vent back flow damper
Good quality, fit well, very satisfied.
Trustpilot
5 days ago
2 months ago
