Best Reverse Osmosis Systems With a Tank Ranked

For families who want a certified tank RO system with more output and a faster pour than entry models, at a low price.

For a household that wants proven, certified RO water at a low price and does not mind a tank under the sink. Filters cost little and are easy to find.

For buyers who want a certified, low-maintenance tank RO system with long-lasting filters.

For cooks and families who fill pots and pitchers often and want a faster pour from a certified tank system.

For buyers who want certified RO water with minerals added back for taste, at a low price. Choose a tankless system instead if cabinet space or wasted water matters more.

For a budget buyer who wants a certified system with cheap filters. Anyone paying for water or on a septic system should pick a lower waste design.

For a small household that wants a certified tank RO system at a low price. Larger families should look at the ROES-100.

For buyers who want a certified tank RO system with remineralization at a low price and can accept high water waste.

For a buyer who wants mineralized water at a low price. The RO5DX is the safer pick if certification matters.

For someone who wants low water waste and mineralized water without needing an outlet. Buyers who want an NSF/ANSI 58 certification should look elsewhere.

For a household that wants a certified, compact tank system with a filter change reminder. Families who draw a lot of water at once will outrun its small tank.

For homes on well water or low line pressure that want a pump and UV stage in a tank system. Buyers on city water get certification for far less with the RCC7.

For a buyer who wants the broadest certification and mineralized water in a tank system. The running cost is high, so budget buyers should look elsewhere.

For well water homes that want UV and an iron prefilter with low water waste. On treated city water the cheaper TMAFC-ERP does the same job.