Quote Originally Posted by Florida Joy View Post
I'm not interested in jerry-rigging my filter grille with sheet metal sleeves, as you suggest, or wood blocking, as suggested by 54regcab. I want to use the 5" filters described in the video in my existing 1" filter grille, without modifications, since the cavity is deep enough. Tell me why I shouldn't do that?

http://www.youtube.com/watch?feature...&v=sOJ0dte_z-Y
They obviously don't know what type of filter you are talking about.