Product review (3 stars): Thin metal and insect screen does not cover opening.
Packed in a box about 6 times the size it needed to be so it rattled around in it and was bent up.  Very thin material compared to old vent made the same way.  Screen over opening to keep out insects is too short and you can stick your hand into one end of it so it will need to be redone in order to keep insects out.  I will keep it and use it but would recommend anyone purchasing this product to look closer for a better built one.