(Amazon.com product link shortened)48326553&sr=8-4
I bought one of these years ago and the thing fell apart within a year or two. And despite there being many sellers and 'brands' it looks like they might all be made by the same place. I also recall it was still drafty in the laundry room.
There's also the louvered kind, although they seem very flimsy too and I can imagine the wind blowing those open easy.
Any suggestions? My dryer vent exit is about 2' above the ground.