Product review (5 stars): The vent itself installed very nicely. This is far superior to any metal vent ...
This works as advertised. Mine is on the south side of our house in a sunny high altitude area, so it has gotten brittle because I did not paint it or protect it, but that only affected the hinge.  This is a place where no plastic survives long.  I had to install it on a basalt rock foundation. It is intended to have the metal vent pipe go through the wall into the vent. It is up to the installer to get that done. The vent itself installed very nicely.  This is far superior to any metal vent I have ever used.