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CleanWaterAdviser
Updated October 27, 2026

Clean water for your home - not for a brochure.

We check every certification claim against the NSF listing and
the maker's own data, and say so when it does not check out.
No "99% purification" claims - only specific contaminants:
PFAS, lead, fluoride, chlorine.

Find my filter ↗ View comparisons
EXAMPLE WATER QUALITY REPORT Sample report Illustration, not a real lab result Lead 1.2 ppb - pass Chlorine 0.6 mg/L - pass PFAS (PFOA) 4.1 ppt - above EPA limit Fluoride 0.7 mg/L - pass Source: EPA UCMR5, local CCR Verified against manufacturer data Example reading - not your own water
NSFonly certified
0paid placements

What's your main concern?

Choose a category - we'll match you with the right filter and NSF-verified data.

⚗️ PFAS & forever chemicals EPA limits since April 2024 🔩 Lead & heavy metals Old pipes, city water 💧 Chlorine & taste Municipal water smell 🏡 Well water Iron, sulfur, bacteria 🏢 Apartment / rental Pitchers & under-sink 🧪 Fluoride removal Most filters leave it in ❓ Not sure Read the full guide

Choose your filter type

Prices change - use buttons to check current price before buying.

Pitcher filters
Fill and pour
  • Taste & chlorine (NSF 42)
  • PFAS or lead needs NSF 53
  • No installation
View all pitcher filters →
Under-sink
Fits under the sink
  • PFAS (NSF 53)
  • Lead removal
  • Chlorine & taste
View all under-sink →
Reverse osmosis
Under the sink, needs a drain line
  • Check what the NSF 58 listing covers
  • Fluoride only if the listing names it
  • Lead & PFAS on some models
View all reverse osmosis →
Whole house
On the main water line
  • All taps covered
  • PFAS & lead
  • Sediment & iron
View all whole house →
Countertop
Sits on the counter
  • RO or carbon models
  • No drilling needed
  • PFAS listed: AquaTru, Ninja
View all countertop →

Top filters - 2026 ranking

"Certified" means the contaminant is named in the model's listing; "maker's claim" means it is not. Brita shown for comparison only.

ModelPFASLeadFluorideBacteriaBuy
Aquasana RhinoMaker's claimMaker's claimNoUV needed Check price on Amazon ↗
Berkey Big BerkeyMaker's claimMaker's claimAdd-onNo published test Check price on Amazon ↗
APEC ROES-50Maker's claimMaker's claimMaker's claimNo Check price on Amazon ↗
Waterdrop G3P600CertifiedCertifiedCertifiedNo Check price on Amazon ↗
Brita (comparison only)Not certifiedNot certifiedNot certifiedNoStandard filter: taste, Cd, Cu, Hg

Why trust us

We don't write reviews after one YouTube video.

Every certification claim on this site is checked against the official NSF listing (42, 53, 58, 401) and the manufacturer's own published data. Where a claim is not confirmed by either, the badge on the product says so. We do not run hands-on tests, and we never accept payment for positive placement.

Buying direct from the brand

Some of the makers on this page also sell the same systems on their own sites and run their own affiliate programs. We earn a commission from those links too, at no extra cost to you. Prices, bundles and warranty terms can differ from Amazon, so compare both before you buy.