Product review (4 stars): Great for new construction, more difficult for replacing existing vents
I bought a number of these dryer vents to replace the plastic ones in a condo building. Birds were building nests inside the plastic vents; they were quite easy for the birds to open, but this all metal vent has a flap that prohibits such actions. Plus, the metal won't deteriorate over the years and fall apart like the plastic ones do. The only reason I gave it four stars instead of five stars is the fact that I had to cut off most of the metal tube to get the vent to fit in place of the plastic ones. However, if you are using this for new construction, that won't be a problem. So. Five stars for use in new construction; four stars for use in replacing existing hardware.