Product review (2 stars): Arrived with two of the four corners bent due to poor packaging. The vent flap doesn't seat firmly on ...
I wouldn't buy it again.  Arrived with two of the four corners bent due to poor packaging.  The vent flap doesn't seat firmly on the body of the vent cap and can't be adjusted to do so (the thin metal flap appears to be sprung)..  The bird screen is simply wedged in and popped out when I touched it.  Any bird or squirrel would have little trouble pushing it out of the way.  The metal is light gauge but serviceable.  The finish is good and is the only outstanding feature.  All in all, barely serviceable .  There must be better products out there.