Product review (5 stars): Vent Review
I ordered one of these to replace the one that had been in place for nine years. It is exactly the same and works well. The problem is that the UV from the sun degrades them over time. It is the best dryer vent I have seen as it is designed to let warm air and moisture out and keep outside cold air from coming into the house. It functions quietly and makes no noise when the wind is blowing.