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💨 Seal the breeze, own the comfort — ventilation perfected!
The Repa Market 4" Duct Backdraft Blocker is a precision-engineered pipe connector featuring a 3.89 inch insertion diameter and a balanced damper to prevent backflow of odors, drafts, and noise. Designed for easy DIY installation, it fits seamlessly into multi-section duct systems including HVAC, dryer vents, and extractor fans. Constructed with durable plastic and a male spigot, it ensures long-lasting, efficient ventilation control for professional-grade airflow management.
| ASIN | B084BP47PT |
| Best Sellers Rank | 20,807 in DIY & Tools ( See Top 100 in DIY & Tools ) 50 in Ducting |
| Brand | Repa Market |
| Colour | White |
| Connector Type | Coupling |
| Connector type | Coupling |
| Country of Origin | Latvia |
| Customer Reviews | 4.1 out of 5 stars 365 Reviews |
| Included Components | Male Fit Connector with Suhutter |
| Item Dimensions | 10 x 10 x 6.2 centimetres |
| Item dimensions L x W x H | 10 x 10 x 6.2 centimetres |
| Manufacturer | Repa Market |
| Material | Plastic |
| Number of Pieces | 1 |
| Size | 100mm |
| Thread Type | BSP |
| Unit Count | 1.0 Count |
M**N
Stops the cold breeze
Simple idea but works very well. Stops the breeze comming through the ducting even on the windy days we've had
A**R
Just what I needed
Mice simple device, installed and doing the job, star lost due to slower delivery time than promised...
A**R
Good quality
Excellent quality fast delivery
T**S
Install it correctly
Works great opens with extractor and closes when extractor is off and stops draft from coming in from outside
C**N
Avoid like the plague.
Utter rubbish. The flap kept falling off every time I tried to attach the hose so ended up leaving it off which kind of defeats the purpose.
D**S
Flimsy but works
The title says it all.
S**S
Great
Simple and effective.
K**Y
Good
Does the job
Trustpilot
3 weeks ago
2 weeks ago