Product review (1 stars): Update
This item does not fit the Kaz model 3000 humidifier as stated.  It doesn't even come close. Check the measurements instead, don't trust what it says.

I am updating because with a little cutting I was able to fit this filter into my humidifier.  Considering it's cheapness, I don't know how long it will last.  I still give it one star because it is so incredibly cheap and it has to be cut.