4 Inch / 100 mm Draft Blocker - Backdraft Damper - Draft Stopper - Backflow Preventer - Inline Fan Vent Deflector - One-Way Airflow Ducting - Dryer Duct Connector with Backdraught Flap
Details
- ColourSilver
- MaterialGalvanized
- BrandRepa Market
- Product dimensions8.8L x 8.8W x
- Maximum gap fill3.9 Inches
Description
🚀 Block the Draft, Not Your Style!
- COMPACT DESIGN - Sleek, galvanized steel construction for durability and style.
- ONE WAY AIRFLOW - Designed to prevent backflow and ensure optimal airflow.
- SPRING LOADED MECHANISM - Automatically opens and closes with pressure changes.
- VERSATILE COMPATIBILITY - Fits all types of round ducts: metal, aluminum, plastic, or fabric.
- NOISE REDUCTION TECHNOLOGY - Equipped with an internal foam seal for quieter operation.
The 4 Inch Draft Blocker is a high-performance backdraft damper designed for seamless integration into various ventilation systems. With a maximum working temperature of 100 °C and a user-friendly installation process, this galvanized steel damper ensures efficient one-way airflow while minimizing noise. Perfect for both residential and commercial applications, it fits all standard round ducts and is built to last.
Specifications
| Manufacturer | Repa Market |
| Product Dimensions | 10.5 x 10.5 x 9.7 cm; 150 g |
| Size | Ø4" Inch |
| Colour | Silver |
| Finish | Galvanized |
| Material | Galvanized Steel |
| Shape | Circular |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Special Features | Easy to Install |
| Usage | Commercial/Residential |
| Included Components | Backdraft Damper |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 150 g |
Reviews
C**G
Working well so far
It's only been installed for a couple of weeks but seems to be working well. It replaces a plastic flap that was hinged on one side and always banged noisily when there were high winds outside. This one has passed that test and seems to have reduced the backdrafts we were getting.
R**
Non return valves
Good well made valves
M**B
Needs a good fan to work
My extractor does not produce enough pressure to open the flaps.I managed to bend the spring enough to get the flaps to open.Pity as it is well made.
S**Y
perfect for the task.
arrived on time , we wrapped and is already fitted.
A**N
Reasonable priced metal one way vent
Exactly what was needed for bathroom ventilation
G**Y
Delivered on time but badly damaged .
Package arrived on time but very badly damaged. Flaps where both bent, springs not engaged due to damage and no sealing at all.Flaps could not move freely , item was unusable in its brand new damaged state.
M**L
Not really suitable for extractor fans
Will work if you're putting it between two pipes, but if you're fitting this within one pipe like you would with most extractor fans in bathrooms etc then it won't fit into your pipe. I had to cut the excess little metal spikes off which wasn't easy. Other options on Amazon don't have these and I bought these beforen and they worked much better.
A**L
Sturdy , better than plastic ones
As in the title, made of metal, so was easy to fit as no danger of breaking when fitting. Also has soft ring inside that will stop the tapping noise when is windy
Common Questions
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1 month ago
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