







💨 Keep your airflow flawless and your space fresh with HG POWER’s sleek backdraft damper!
The HG POWER 4 Inch Backdraft Damper is a premium stainless iron one-way vent damper designed to prevent backflow in HVAC, kitchen, and dryer vent systems. Its corrosion-resistant construction and multiple size options ensure durability and compatibility, while the easy installation and maintenance-free design make it an efficient, cost-saving solution for residential and commercial airflow management.





| Manufacturer | HG POWER |
| Item Weight | 5 ounces |
| Product Dimensions | 4.06 x 3.82 x 4.06 inches |
| Is Discontinued By Manufacturer | No |
| Size | 4 Inch |
| Color | Silver |
| Material | Metal |
| Installation Method | Wall-Mounted |
| Item Package Quantity | 1 |
| Accessory Connection Type | Quick Connect |
| Mounting Type | Embedded |
| Batteries Included? | No |
| Batteries Required? | No |
H**P
Check and verify your size of duck wiork
I was adding this in on my existing duck work and had to modify duct to fit the damper.
X**K
Works as expected
Works as expected, looks like it will hold up for a long time
P**Z
El producto perfecto
Muy buenas calidad del producto
R**S
Spring tension is perfect
I've had trouble in the past with products like this having to much spring tension. This leads to reduced air flow.Although I didn't get a video at the time of install. I was pleasantly surprised to see the flap working flawlessly with my fan setting on low. Made my day because I really have had bad luck finding one of these back flow preventer with the proper spring tension for my needs.
Trustpilot
3 weeks ago
1 month ago