About Clear Water Home Lab

What this site is

Clear Water Home Lab publishes research on home water filtration for US households. Every guide starts from the contaminant, matches it to the certification that actually removes it, and then compares systems on capacity, flow and five-year cost.

How we research

Our comparisons are desk research. We do not install or lab-test the systems we write about. Rankings are built from manufacturer specifications, the NSF and WQA certification listings, current pricing and stated replacement schedules, and the contaminant profiles published in municipal Consumer Confidence Reports.

Where a figure is a manufacturer's own claim rather than an independently certified value, the article says so. Where we have no reliable figure, we leave it out rather than estimate.

How we make money

Some links are affiliate links, and we may earn a commission at no additional cost to you. Commission does not influence which system a guide recommends, and no manufacturer reviews our content before publication.