What Waterdrop claims about PFAS
Waterdrop says its G3P800 reduces PFOA and PFOS by 99% and ties the claim to its own lab reports and the Performance Data Sheet, while EPA advises looking for certification under NSF/ANSI 53 or NSF/ANSI 58 for PFAS reduction. IAPMO R&T's directory lists the WD-G3P600 and WD-G3P800 under NSF/ANSI 53 with the reduction claim PFOA/PFOS, on the carbon block both use, and prints no percentage.
- Waterdrop's claim: 99% for PFOA and PFOS, on the G3P800 page.
- The listing: NSF/ANSI 53, PFOA/PFOS, for the WD-G3P600 and WD-G3P800.
- EPA: look for NSF/ANSI 53 or 58 for PFAS reduction.
We may earn a commission if you buy through links on this page, at no extra cost to you.
Shop Waterdrop systems →Which Waterdrop models the listing names
As read on October 14, 2026, the G3P600 was $539.00 and the G3P800 $999.00, one-time prices with filters extra, and IAPMO R&T's NSF/ANSI 53 certificate lists both for PFOA/PFOS. The X12 and X16 pages name PFOA and PFOS among reduced substances, but the directory's NSF/ANSI 58 rows for both name only TDS, and neither is in the NSF/ANSI 53 certificate.
Waterdrop's K6 page also names PFOA and PFOS, while its only certification line is NSF/ANSI 372, a standard for lead-free materials. No Waterdrop page read for this guide names NSF/ANSI P473; Aquasana's SmartFlow page does (see Waterdrop vs Aquasana).
What EPA says about PFAS and home filters
EPA's enforceable limit for PFOA and PFOS in drinking water is 4.0 parts per trillion, set in its final rule of April 10, 2024. On May 18, 2026, EPA announced two proposed PFAS rules for public comment, one of which upholds the PFOA and PFOS limits.
EPA found that the GAC, ion-exchange and RO point-of-use systems it studied can greatly reduce PFAS levels, and says filter certifications do not yet indicate removal down to the levels it set for a drinking water standard. It names CSA Group, IAPMO R&T and NSF as the certification bodies whose listings to check.
Check your water, then the listing
Your utility's Consumer Confidence Report, due each year by July 1, lists the regulated contaminants found in its water; if you did not get one, EPA's CCR search tool can find it. For a private well, EPA advises testing every year for coliform bacteria, nitrates, total dissolved solids and pH, through a laboratory certified for drinking water.
Then match the model: for PFOA and PFOS, the G3P600 and G3P800 carry a listed NSF/ANSI 53 claim and the X12 and X16 do not. That claim sits on the carbon block, which Waterdrop rates at up to 12 months or 1,100 gallons.
Where these facts come from
Waterdrop's claims come from its G3P800, G3P600, X12, K6 and PFAS pages, the listing rows from IAPMO R&T's directory, and the rules and advice from EPA's pages, all read on October 14, 2026.
Sources used for this page
These records support the facts and comparisons above. Merchant-controlled records are labeled so you can separate product claims from independent evidence.
- EPA guidance for filters certified to reduce PFAS — Regulatory guidance · epa.gov · Publisher independence not verified · read October 14, 2026
- NSF guide to drinking-water treatment standards — Standards and certification reference · nsf.org · Publisher independence not verified · read August 28, 2026
- CDC choosing a home water filter — Regulatory guidance · cdc.gov · Publisher independence not verified · read August 28, 2026
- 800 GPD Tankless Reverse Osmosis System - Waterdrop G3P800 — Vendor product page · waterdropfilter.com · Merchant-controlled · read October 14, 2026
- PFAS Reduction Made Easy | Waterdrop — Vendor documentation · waterdropfilter.com · Merchant-controlled · read October 14, 2026
- G3P600 Reverse Osmosis System - Waterdrop G3P600 — Vendor product page · waterdropfilter.com · Merchant-controlled · read October 14, 2026
- Waterdrop X Series Reverse Osmosis System, X12 — Vendor product page · waterdropfilter.com · Merchant-controlled · read October 14, 2026
- Waterdrop Instant Hot Water Dispenser, Reverse Osmosis System, K6 — Vendor product page · waterdropfilter.com · Merchant-controlled · read October 14, 2026
- IAPMO R&T Product Listing Directory (brand name Waterdrop) — Standards and certification reference · pld.iapmo.org · Publisher independence not verified · read October 14, 2026
- IAPMO R&T certificate WC-14805 (NSF/ANSI 53) — Standards and certification reference · myplc.iapmo.org · Publisher independence not verified · read October 14, 2026
- EPA: PFAS national primary drinking water regulation — Regulatory guidance · epa.gov · Publisher independence not verified · read October 14, 2026
- EPA: Consumer Confidence Report information for consumers — Regulatory guidance · epa.gov · Publisher independence not verified · read October 14, 2026
- EPA: Protect your home's water (private wells) — Regulatory guidance · epa.gov · Publisher independence not verified · read October 14, 2026