Product review (5 stars): Good alternative
These water filters are a good option for us instead of the manufacturer's filters because of the cost and convenience of ordering through Amazon Prime.  Additionally, we recently did home water testing and tested the filtered water from our refrigerator and everything came out perfectly, so we're feeling pretty good about using these. Of course, there are things in our water supply that no consumer product can take out such as hexavalent chromium, but these filters are certainly as good as can be expected.