Our Reviewers
Every product reviewed on H2O Insider is tested by a named expert. No anonymous reviews, no ghost-written listicles — real people, real credentials, real homes.
Rob Boirun
Founder & Lead Reviewer
Rob founded H2O Insider after spending two years unable to find trustworthy, independent water filter reviews online. He buys and uses every filter the site reviews, and checks each certification claim against the NSF, IAPMO and WQA listings.
34 articles →
Sarah Chen
Water Quality Research Analyst
Sarah brings academic rigor to H2O Insider's contaminant coverage. She writes our contaminant guides and checks our certification coverage for technical accuracy. She lives in Sacramento, CA.
18 articles →
Mike Callahan
Plumbing & Installation Contributor
Mike has installed more water treatment systems than most people have reviewed. He contributes installation guidance, evaluates ease-of-install scores, and calls out any product that requires a professional where it claims DIY. He is based in Oakland, CA.
11 articles →