🚫💨 Stop the backdraft, start the comfort!
The 4 Inch Draft Blocker Backdraft Damper is a robust ventilation accessory crafted from galvanized steel, aluminum, and stainless steel. Designed for easy insertion into 4-inch ducts, it prevents reverse airflow and air recirculation, improving HVAC efficiency across residential and commercial applications. Its spring-loaded flap ensures optimal sealing whether installed horizontally or vertically, making it a smart, durable upgrade for any ventilation system.
| Manufacturer | dojobkinb |
| Item Weight | 118 g |
| Package Dimensions | 14 x 10.49 x 9.7 cm; 118 g |
| Size | 4 Inch |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |
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