Product review (5 stars): The BEST!
We are known to have the hardest water anywhere and let me tell you, this filter works! We are amazed by the difference in all of our dishes. Our plates are glossy black again, our glasses are clear, and our silverware sparkles. We don't run the dishwasher that often so I can't comment as to the longevity of the filter but we are 100% happy with this product.