






🚫💨 Stop drafts, start comfort — the silent guardian of your airflow!
This 6-inch (150mm) backdraft damper is a precision-engineered aluminum device designed to fit snugly inside round ventilation ducts. Featuring a spring-loaded one-way flap with an internal foam seal, it prevents backflow and reduces noise, making it ideal for HVAC systems in homes and commercial spaces. Easy to install and compatible with various duct materials, it ensures efficient, quiet airflow control and long-lasting durability.







| ASIN | B083M613K3 |
| Best Sellers Rank | 19,490 in DIY & Tools ( See Top 100 in DIY & Tools ) 52 in Ducting |
| Brand | Repa Market |
| Brand Name | Repa Market |
| Colour | Silver |
| Country Of Origin | Latvia |
| Customer Reviews | 4.5 out of 5 stars 948 Reviews |
| Global Trade Identification Number | 07427046530231 |
| Included Components | Backdraft Damper |
| Item Dimensions L x W x Thickness | 15L x 15W x 15Th centimetres |
| Manufacturer | Repa Market |
| Material | Aluminium |
| Material Type | Aluminium |
| Maximum Gap Fill | 6 Inches |
| Maximum gap fill | 6 Inches |
| Number of pieces | 1 |
| Product dimensions | 15L x 15W x 15Th centimetres |
| Unit Count | 1.0 Count |
A**A
Good quality
Very good quality
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.
A**N
Brilliant
Brilliant. Replaced the cheap plastic type with this and now the flaps don’t bang when it’s windy.
M**T
No more draughty kitchen
Easily fitted and works perfectly with my kitchen extractor fan. No more cold draughts.
S**N
Well made but bathroom extractor on high speed not capable of opening shutters
Well made but extractor fan not capable of opening shutters in vertical position. Even when extractor adjusted to high speed.
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.
W**A
Resolved my draft issues in a few steps.
Excellent. Does what it's meant to. Easy fitting. Would have been nice if a zip tie was included as I had to buy specifically for this but aside from this excellent system
G**H
5 “(125mm) extractor fan vent
Slotted straight in to the hole in the wall of my house,I put some silicone around the edge to stop any draughts it looks good and does the job
Trustpilot
Hace 1 mes
Hace 2 meses