🔧 Master Your Airflow with Ease!
The Therwen Backdraft Damper is a 4-inch manual volume damper designed for efficient airflow regulation in various HVAC applications. Made from durable galvanized iron, it offers high temperature resistance and moisture protection, ensuring long-term reliability. With easy installation and versatile use, this damper is perfect for air conditioning, dryer vents, and range hoods, making it an essential tool for both residential and commercial settings.
| Manufacturer | Therwen |
| Part Number | GFA-Therwen-647 |
| Item Weight | 15.8 ounces |
| Package Dimensions | 7.56 x 5.55 x 5.2 inches |
| Country of Origin | China |
| Item model number | GFA-Therwen-647 |
| Size | 4 Inch |
| Item Package Quantity | 1 |
| Batteries Required? | No |
M**E
Perfect fit
Works great shuts the air off almost completely. Well made.
C**3
Better then the rest
Great fitment and the quality of metal and design is superb. The 6 inch modulate air perfectly either doing a manually or with zone actuators by removing the handle. 10 out of 10!
M**O
Using for venting a coffee roaster
Works well. A litttle rust forming by handle pivot but motor running strong.
A**R
Very well made
Construction is good, these are not made with cheap material, very sturdy, well made. Work perfectly, fit as it should. If you buy 2, you get a nice deal.
T**Y
A bargain.
Great piece of equipment for the dough. Works as advertised.
A**R
Impressed
Very heavy duty and a great value.
D**R
Solved an rv furnace airflow balance issue.
When I bought my rv, I noticed that the furnace was totally out of balance and dumped all of the air into the living area and hardly any air was going to the rest of the trailer. I tried blocking the vent with plastic and tape, but neither worked. I placed this damper in the line going to the living area and suddenly had infinite control of the flow to the area. I only had to make a slight adjustment, but the result was perfect. The other part of the trailer now has better flow, and the heat distribution issue with the furnace is resolved. The valve is easy to adjust and the lock screw insures the valve will stay where you set it.
T**E
Poor workmanship
The damper appears to have been cut with a chainsaw.
Trustpilot
1 day ago
2 weeks ago
