Product review (3 stars): Almost worked
Great idea, but did not work as well as I had hoped. The dryer took significantly longer to dry a load of clothes with this vent closure installed. I ended up using the elbow turned down without the endcap. My dryer exits directly out the side of the house without much plumbing, so the need for a vent closure is minimal. The result looks good and provides excellent airflow, but based on the endcap issue I would not purchase this item again.