








🔧 Control your airflow like a pro—because comfort is non-negotiable!
The TOP-VIGOR 4 Inch HVAC Duct Manual Volume Damper is a durable, galvanized iron airflow control device designed for precise volume regulation and backdraft prevention in HVAC systems. Its smooth rotary handle enables easy adjustment, while its corrosion-resistant build ensures reliable, long-term use across various ventilation applications.










| ASIN | B0D97BZ6C4 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #577,209 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,528 in HVAC Ducting |
| Customer Reviews | 5.0 5.0 out of 5 stars (8) |
| Date First Available | July 11, 2024 |
| Item Package Quantity | 1 |
| Item Weight | 1.31 pounds |
| Manufacturer | TOP-VIGOR |
| Package Dimensions | 7.87 x 5.51 x 3.94 inches |
| Size | 4 Inch |
G**T
Seals extremely well!
I have my laser engraver vented outside via a 6” duct with a flap on the outside wall. I decided to install a damper to stop cold air from coming back into my basement. When this damper is closed it completely seals off the duct and stops all cold air from backing down the duct. It is very easy to operate and has a locking wing nut to lock the damper in any position. I highly recommend this product.
D**X
perfect for Chinese diesel heaters
this valve is PERFECT for Chinese diesel heaters that are used to heat two different areas. very happy with its' performance!!!!
T**S
Excelente calidad, muy buen precio. Llegó antes de tiempo
Trustpilot
1 maand geleden
3 weken geleden