Product review (4 stars): Good product - No instructions
I received my range hood filter quickly and in  good shape.  It fit my hood and was just what I needed.  However, there were no instructions.  Both sides were really different, and I didn't know which side was up!  Had to call the Repairclinic hotline (toll free) and they were able to instruct me on how it was suppose to fit.  Somewhere on the package or the filter itself, there should have been an arrow to point to the top side.