Product review (5 stars): Fits like a glove. Works like a charm.
Hunter has changed their part numbers and made no cross references back to the original number in our owners manual.  Our machine is only about four years old so it my opinion the part number should have been cross referenced. Shame to Hunter for this!  Thanks to Filters America and another site we were able to find a correct replacement and the humidifier continues to work.  Maybe someone thought that if we could not get another filter, we would just buy a new machine.