Product review (5 stars): Either its a really good knock off
When they said exact fit.. it even came in the same box, and it was Honeywell branded. Either its a really good knock off, or the real thing. Hard to tell. Got moldy and dirty at around the same rate, I don't see much of a difference. You can try to recondition old ones by rinsing and washing them in vinegar to dissolve the mineral build up, but for the cost of the 6 pack, its easier and more hygenic to just replace every few months.