🚀 Block the Draft, Boost Your Comfort!
The Draft Blocker - Backdraft Damper Duct (4'' Inch) is a high-quality ventilation solution made from durable galvanized steel and aluminum. Designed for easy installation in various settings, it effectively prevents air re-circulation, ensuring optimal airflow when fans are not in use. Suitable for both residential and commercial applications, this damper is a must-have for efficient ventilation.
| Manufacturer | dojobkinb |
| Package Dimensions | 14 x 10.49 x 9.7 cm; 118 g |
| ASIN | B099R69LM2 |
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.
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
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.
R**A
Awesome
Awesome Amazonian!!!
Trustpilot
1 month ago
2 months ago
