said by SparkChaser:
That's a nice one. Mine is low to the ground. So, I worry about critters getting in. I modify it by adding some wire mesh.
I have that one.
It doesn't close up so well by itself, letting cold air in.
The wire mesh clogs up every week with dryer lint, then it eventually wouldn't go back in its place (after removing it to clean over and over).
There are no good dryer vents out there that aren't only found on some specialized website that only ships to the US (I live in Canada).