- How are reviewers describing this item?
open, quality, expected, thin and good.
- Our engine has discovered that over 80% high quality reviews are present.
- This product had a total of 19 reviews as of our last analysis date on Aug 18 2016.
Thanks to other reviews i expected this vent to fit my need as my opening was more like 21 1/2 x 21 1/2
To be as specific as possible: this item will fit a 21 3/8 x 21 3/8 opening exactly
Should easily work up to 21 1/2 square opening without modifications but any larger and plan a project (perhaps flashing)