Using our city water, rated near the best in the whole US, our Aquasana filter takes about 3 months to clog up with rust, mud, and who knows what else. The water that runs through the Aquasana system tastes fantastic, and it's great to see what we're *not* drinking when we change the filter. Our current countertop system as a whole has lasted for several years: great value for the price.
Have been an Aquasonic user now for years. Using my second Aquasonic. Only changed color because of kitchen makeover. Have been enrolled in “water for life” for years, and I don’t have to remember to order. Filters come automatically.