Product review (3 stars): I expected it to cover the area where I took ...
I expected it to cover the area where I took off the old standard size vent; it didn't so you have to make a frame work to cover the left open area. It also said that screws included which where not. Not that big of a deal to go buy screws but it set me back on time of installing. The standard vent pipe did not fit the opening so I had to slice it to squeeze it in.