Rated 4 out of 5Â by DigitalGeoff Does the job
Easy to fit and is working well at preventing winds blowing in.
Rated 5 out of 5Â by PenguinParsons keep out those external smells
If i am fitting an extractor fan near where rubbish bins are kept, I tend to fit one of these - and they work. Even in cross winds they seem to stay closed and keep out those transient nasties.
Rated 5 out of 5Â by BigRingo square vent
Spot on for price and dos the job fit was excellent
Rated 5 out of 5Â by TheFlyingScotsman Looks and works great.
Replaced old broken horrible brown flap with this attractive (for a flap) white one. Screw holes were in the same place so it was an extremely easy job.
The back of the flap is configured to slot into both rectangular and round vent hoses - you just snap off the lugs you don't need.
My vent hose is rectangular (brick sized) so I snapped off the lugs for the round vent -easily with my fingers - and it just slotted in and screwed into place.
The one I got from the store has 3 louvers not 2 as in the photo.