By contaminant
What do you need to remove?
Certification is per-contaminant — a filter certified for lead may do nothing for PFAS or arsenic. Pick what's in your water (or look it up by ZIP) to see only the filters actually certified for it.
Heavy metals
Lead
757 certified filters
255 with prices →
Mercury
456 certified filters
165 with prices →
Barium
236 certified filters
61 with prices →
Copper
192 certified filters
108 with prices →
Cadmium
186 certified filters
102 with prices →
Chromium
132 certified filters
49 with prices →
Arsenic
128 certified filters
43 with prices →
Chromium-6
113 certified filters
41 with prices →
Zinc
64 certified filters
53 with prices →
PFAS ("forever chemicals")
Disinfection byproducts
Nitrate & nutrients
Microbial / cysts