An under-sink reverse-osmosis system with a 0.0001μm membrane. This is the 2026 lab consensus pick for kitchen water: it reduces lead, PFAS, fluoride, arsenic, nitrates, and the chlorine byproducts that form in Mississippi River water.

Pitcher filters and Brita-style carafes are not built for this. LSU Health New Orleans notes that many popular pitchers do not meet current lead-reduction standards. RO physically blocks dissolved metals and forever chemicals. Remineralization is included so the water does not taste flat.

Tankless, compact, and made for a standard kitchen cabinet. A dedicated faucet sits next to your existing one. Filter changes take minutes. This is the system to buy if you want the water you drink and cook with handled, even if you rent.