Product review (4 stars): Long Lasting and Worth The Price
These work great. Mine last three or four times longer than the directions indicate. When my frig filter light tells me it is all used up I simply reset it and it continues to filter and produce delicious water for many months afterwards. We typically get fifteen months out of a single filter but there are only two of us in the house. It is only when it finally begins to clog up and the water runs out with noticeably less force that the water begins to taste off and I replace the filter. I buy two at a time so that I always have a backup.