Product review (3 stars): Generic filter at a good price, but....
The filter did not fit in the humidifier as well as the original one did.  The filter gauge did not reset, so it still reads "Replace Filter".  It does, however, work just fine.  It was a bit of a challenge to round it out to get it to fit correctly in the unit(as it comes flat in a box).  It does the job for a fair price and they are hard to find locally.