Contaminant · Water
Lead
What it is
Lead enters drinking water mainly from corrosion of older lead service lines, plumbing, and brass fixtures. It is not present at the source; it leaches on the way to the tap, which is why two homes on the same supply can differ.
Why it matters
The EPA sets an action level of 15 parts per billion and states there is no known safe level of lead exposure for children. The CDC links elevated childhood blood-lead levels to developmental effects. These are regulatory and public-health statements about the contaminant, not claims about any product.
What removes it
A filter certified to NSF/ANSI 53 for lead. Reverse osmosis (NSF/ANSI 58) also reduces lead. Certification for lead specifically is what matters - a general 'NSF certified' logo may only cover taste and odor.
Reference: EPA Lead and Copper Rule; CDC childhood lead guidance.
Scored filters certified for Lead
- 7.5Culligan US-EZ-4 Under-Sink
An under-sink filter genuinely IAPMO certified to NSF/ANSI 42, 53 and 401 for lead, cysts, VOCs, mercury and PFOA/PFOS.
- 7.3Brita Elite Pitcher (10-Cup)
A pour-through pitcher whose Elite filter is certified to reduce lead, mercury, cadmium and more, with a long 120-gallon cartridge.
- 7.2Aquasana AQ-5200 Under-Sink
Certified for lead and PFAS, cheap per gallon, marketing matches the certified scope.
- 7.2AquaTru Classic Countertop RO
A no-plumbing countertop 4-stage RO purifier certified to NSF standards for lead, PFAS, fluoride and arsenic with an efficient drain ratio.
- 6.8Frizzlife SK99 Under-Sink Filter
A direct-connect 3-stage under-sink filter with a 0.5 micron carbon block, IAPMO certified to NSF/ANSI 42 and 53 for chlorine, lead and chloramine.
- 6.0Brita Faucet Mount (Elite)
A tool-free faucet-mount system whose Elite filter is NSF certified to 42 and 53 for chlorine and lead reduction.
- 5.4PUR Plus Faucet Mount (PFM400H)
A faucet-mount system whose RF-9999 cartridge is genuinely NSF certified for lead, chlorine, mercury and microplastic reduction.
- 4.9ZeroWater 5-Stage Pitcher (7-Cup)
A five-stage ion-exchange pitcher certified for lead, chromium-6 and PFOA/PFOS - but a short 15-gallon filter makes it costly to run.
- 4.9PUR Plus Pitcher (7-Cup)
An affordable pitcher certified to reduce lead, mercury, microplastics and chlorine, though its 40-gallon filter needs frequent swaps.
- 4.9Waterdrop G3P800 Tankless RO
A tankless 800 GPD reverse-osmosis system certified to NSF/ANSI 42, 53, 58 and 372 with an efficient pure-to-drain ratio.
- 4.1Epic Smart Shield Under-Sink
A slim inline under-sink filter genuinely certified by IAPMO to NSF/ANSI 42, 53 and 401 for lead, VOCs and more - though its PFAS reduction is tested to standards, not in the certified scope.
FAQ
- Does boiling water remove lead?
- No. Boiling concentrates lead rather than removing it. Use a filter certified to NSF/ANSI 53 for lead.