Product review (5 stars): Just ordered these...
I had ordered one before for my range hood.  Fit great.  Then I ordered two more.  These are cheaper on Amazon.com than at our local Home Depo or Loews.  Only problem with one is that it was bent when I received it--however, that is due to the way it was thrown in with other items in a big box--not due to the quality of the item.