Under-sink reverse osmosis · checked 16 Oct 2026
Waterdrop X Series Reverse Osmosis System, X12
Model WD-X12 · replacement parts F1A, F2, X12-F3
Lead:Brand says certifiedPFAS:Brand says certified
Each claim, checked
What the brand says, what a certification listing shows for this model, and where each fact comes from. We read listings; we do not test products.
- Certified (listing checked)The certifier’s public listing shows this claim for this model.
- Brand says certifiedThe brand says certified; IAPMO’s listing does not show it. NSF can be checked by hand.
- Brand claim onlyThe brand claims it without citing a certification.
| Contaminant | Brand claim | Standard | Certifier | Confirmed? | Source, date checked |
|---|---|---|---|---|---|
| Lead | “NSF/ANSI 42&58&372 Certified | Reduced substances | TDS, PFOA, PFOS, Chlorine, Fluoride, Barium, Arsenic, Salt, Sediment, Chromium-VI, Lead, Microplastics, Odor and more” brand source | NSF/ANSI 42&58&372 | IAPMO (named by brand) | Brand says certified — not found in IAPMO’s listing; check NSF | IAPMO searched · check NSF’s listingchecked 16 Oct 2026 |
| PFOA | Same statement as for Lead. brand source | NSF/ANSI 42&58&372 | IAPMO (named by brand) | Brand says certified — not found in IAPMO’s listing; check NSF | IAPMO searched · check NSF’s listingchecked 16 Oct 2026 |
| PFOS | Same statement as for Lead. brand source | NSF/ANSI 42&58&372 | IAPMO (named by brand) | Brand says certified — not found in IAPMO’s listing; check NSF | IAPMO searched · check NSF’s listingchecked 16 Oct 2026 |
| Total dissolved solids (TDS) | Same statement as for Lead. brand source | NSF/ANSI 58 | IAPMOfile WC-13976 | Certified — IAPMO listing, checked 16 Oct 2026 | IAPMO listingchecked 16 Oct 2026 |
| Fluoride | Same statement as for Lead. brand source | NSF/ANSI 42&58&372 | IAPMO (named by brand) | Brand says certified — not found in IAPMO’s listing; check NSF | IAPMO searched · check NSF’s listingchecked 16 Oct 2026 |
| Arsenic | Same statement as for Lead. brand source | NSF/ANSI 42&58&372 | IAPMO (named by brand) | Brand says certified — not found in IAPMO’s listing; check NSF | IAPMO searched · check NSF’s listingchecked 16 Oct 2026 |
| Chlorine | Same statement as for Lead. brand source | NSF/ANSI 42 | IAPMOfile WC-14301 | Certified — IAPMO listing, checked 16 Oct 2026 | IAPMO listingchecked 16 Oct 2026 |
| Barium | Same statement as for Lead. brand source | NSF/ANSI 42&58&372 | IAPMO (named by brand) | Brand says certified — not found in IAPMO’s listing; check NSF | IAPMO searched · check NSF’s listingchecked 16 Oct 2026 |
| Other | Same statement as for Lead. brand source | NSF/ANSI 42&58&372 | IAPMO (named by brand) | Brand says certified — not found in IAPMO’s listing; check NSF | IAPMO searched · check NSF’s listingchecked 16 Oct 2026 |
| Particulates | Same statement as for Lead. brand source | NSF/ANSI 42&58&372 | IAPMO (named by brand) | Brand says certified — not found in IAPMO’s listing; check NSF | IAPMO searched · check NSF’s listingchecked 16 Oct 2026 |
| Chromium-6 | Same statement as for Lead. brand source | NSF/ANSI 42&58&372 | IAPMO (named by brand) | Brand says certified — not found in IAPMO’s listing; check NSF | IAPMO searched · check NSF’s listingchecked 16 Oct 2026 |
| Microplastics | Same statement as for Lead. brand source | NSF/ANSI 42&58&372 | IAPMO (named by brand) | Brand says certified — not found in IAPMO’s listing; check NSF | IAPMO searched · check NSF’s listingchecked 16 Oct 2026 |
| Taste and odor | Same statement as for Lead. brand source | NSF/ANSI 42 | IAPMOfile WC-14301 | Certified — IAPMO listing, checked 16 Oct 2026 | IAPMO listingchecked 16 Oct 2026 |
Filter changes, by the brand’s numbers
How often Waterdrop says to replace each part. Real filter life depends on how much water you use and what is in it.
| Part | Brand says replace every | Changes a year | Source, date checked |
|---|---|---|---|
| F1A composite filter | 12 months or 1,100 gallons“F1A Filter Provides up to 12 months or 1,100 gallons of clean water.” | 1 | brand sourcechecked 16 Oct 2026 |
| F2 filter | 6 months or 550 gallons“F2 Filter Provides up to 6 months or 550 gallons of clean water.” | 2 | brand sourcechecked 16 Oct 2026 |
| X12-F3 reverse osmosis filter | 24 months or 2,200 gallons“X12-F3 Filter Provides up to 24 months or 2,200 gallons of clean water.” | 1 every 2 years | brand sourcechecked 16 Oct 2026 |
Certification listings found
IAPMO · NSF/ANSI 42 · file WC-14301
Qingdao Ecopure Filter Co. Ltd lists WD-X12-WAB, WD-X12-WCS, WD-X12 and 9 more
Chlorine · Taste & Odor · Taste and Odor
Open the listing · checked 16 Oct 2026
IAPMO · NSF/ANSI 58 · file WC-13976
Qingdao Ecopure Filter Co. Ltd lists WD-X12-WMS, WD-X12-WAQ, WD-X12-WCS and 5 more
TDS
Open the listing · checked 16 Oct 2026
IAPMO · NSF/ANSI/CAN 372 · file WC-13977
Qingdao Ecopure Filter Co. Ltd lists WD-X12-WNM, WD-X12-WAQ, WD-X12W-WAQ and 15 more
Materials only (no reduction claim)
Open the listing · checked 16 Oct 2026
Check it yourself
NSF’s and WQA’s terms don’t allow automated lookups, so these links open their public listings for this model:
- NSF listing search: WD-X12
- NSF listing search: Waterdrop
- WQA listing search: WD-X12
- WQA listing search: Waterdrop
- IAPMO R&T listing directory
What the brand says about certification
- “NSF/ANSI 42&58&372 Certified” source checked 16 Oct 2026
- “System Tested and Certified by IAPMO R&T against NSFANSI 58 for the reduction of the claims specified on the Performance Data Sheet, and NSF/ANSI 372 (≤0.25% lead).” source checked 16 Oct 2026
- “The filter is certified by SGS to reduce over 1,000 different impurities including TDS, PFOA, PFOS, Chlorine, Fluoride, Arsenic, Lead, and more” source checked 16 Oct 2026
- “System Certified by IAPMO R&T against NSF/ANSI Standard 42&58 for the reduction of the claims specified on the Performance Data Sheet, and to NSF/ANSI 372 for low lead.” source checked 16 Oct 2026
Performance data sheet (names IAPMO R&T)