Expert reviews, buying guides, and everything you need to know about home water filtration. Find the perfect system for your water quality concerns.
US tap water varies dramatically by region — some cities have soft, clean water; others have high levels of chlorine, fluoride, lead, PFAS, or hard minerals. A quality water filter removes the contaminants that matter for your specific water. We test reverse osmosis systems, whole-house filters, under-sink systems, countertop filters, and shower filters across performance metrics: NSF certification, contaminant reduction rates, flow rate, and filter longevity.
Water filtration systems range from $30 pitcher filters to $2,000 whole-house installations. The right choice depends on your water source (municipal vs well), specific contaminants present, household size, and budget. Our buying guides cut through the marketing to show which filters deliver the filtration performance they claim — and which are overpriced for what they do.
Different filtration needs call for different solutions
Filter every tap in your home. Best for well water or serious contamination concerns.
See Top Picks →Dedicated filtration for your kitchen. Great balance of performance and convenience.
See Top Picks →Maximum filtration. Removes up to 99% of contaminants including dissolved solids.
See Top Picks →No installation needed. Affordable entry point for basic filtration needs.
See Top Picks →Portable and renter-friendly. Better filtration than pitchers, no installation.
See Top Picks →Reduce chlorine and improve skin/hair health. Easy DIY installation.
See Top Picks →Our most recommended filters across all categories
Best whole house filter for most homes. 10-year/1M gallon capacity, NSF certified for 77 contaminants.
Check Price →Removes 365+ contaminants including fluoride and lead. Affinity filtration technology.
Check Price →Tankless RO with 800 GPD capacity. Smart faucet shows TDS. Compact design.
Check Price →Removes 365+ contaminants — far more than Brita. Worth the upgrade for serious filtration.
Check Price →Everything you need to understand your water and find the right filter