Product review (1 stars): Was a good purchase!
purchased several months ago and have had no problems until I reordered a new filter.  I bought it over a month ago and just installed it yesterday and tested the water and there was no difference from my  tap water. I contacted the company and they were less than helpful. They suggested I should return it to Amazon. I would if the return window hadn't closed  and I hadn't installed it. It may just be a better filter I received this time but the company does not seem to care.