Product review (2 stars): Doesn't move much water.
Doesn't move much water.  After using the original one last year, I was used to filling it every 2 days.  With this filter, it lasts 5-6 days, which means that, although it is very wet, the water is not evaporating.  If I had not had the others which worded much better, I would not have noticed, but since this is its only function, I am disappointed.  I actually have been looking to see if it must have a frame around it.  I didn't remember it having one before, but it moves so little water that I wondered if I had just forgotten to replace it around the wick.