








🚫❄️ Stop drafts, odors & noise before they start!
The Repa Market 4" Duct Backdraft Blocker is a lightweight, easy-to-install inline valve designed to fit standard 100mm ducts. Featuring a balanced damper shutter, it effectively prevents cold air, odors, and noise from flowing back through dryer vents, extractor fans, and HVAC systems, making it an essential upgrade for modern home ventilation and energy efficiency.







| Manufacturer | Repa Market |
| Product Dimensions | 10 x 10 x 6.2 cm; 50 g |
| Size | 100mm |
| Colour | White |
| Material | Plastic |
| Shape | Circular |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Special Features | Easy to Install |
| Usage | Commercial/Residential |
| Included Components | Male Fit Connector with Suhutter |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 50 g |
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