Product review (3 stars): Doesn't exactly fit right, but with a pair of scissors it will.
We have the Electrolux French Door model and the filter as shipped doesn't go into the slot.  We have to cut off part of the filter enclosure in order to get it in there.  It would probably be just as effective if we threw away the cardboard enclosure and just put the folded up black filter element in the cubbyhole.  But the directions imply that shouldn't be necessary.