Product review (5 stars): Great filters, fit great!
Exactly as described.  Sometimes I find that filters that don't come directly from honeywell can be a little too big/too small.  Sometimes they don't fit right, which makes putting the unit back together a real pain. These fit great, though!  No problems at all!

There's not really much else to say about humidifier filters, I guess.  I've only used them for about a week so I can't report on longevity, but I have no reason to believe they won't perform just fine over a month or so.  That's about as long as I keep these things.