Filter Finder
Which water filter do you actually need?
Five questions, 60 seconds. You'll get the technology that fits, the certification to check for, and a realistic budget — no brand pushing.
Want certified local quotes for this setup?
We'll send your recommendation to up to three vetted, certified installers or labs in your area — or just email you the plan if you'd rather DIY.
CityH2O doesn't sell filters. Recommendations are by technology and certification standard, not brand. Always confirm a product's certification listing covers the contaminants you care about.