I have reviewed products that cost nearly $800. They were pretty effective, but they did not provide the best contaminant reduction. I have reviewed products that cost around $100 that were more effective. This is one case where price is not the best factor to use for judging quality.

The reason for the extra cost is a reverse osmosis step to remove cysts and lead. A countertop water filter with a submicron particle filter will remove cysts and costs a lot less. Ion exchange reduces lead to a greater extent than what you find in reverse osmosis and it costs less. Why pay more when you don’t have to?