Waterdrop X12 (US)
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Tankless 1200 GPD under-sink reverse osmosis unit, IAPMO-certified to NSF/ANSI 58 (PFOA and PFOS on the performance data sheet), 42 and 372. US store, 1,299 USD list. Plain link, partner link pending.
Where to buy
No buy link for this market; the seller does not deliver here or has not supplied a link.
List price seen on 19 September 2026: US$1,039.00 (was US$1,299.00). Prices change; the store's price is the one that counts. Over $500.
What this filter does and does not do
The honest summary to read before buying:
- Sold by the US store, rated 110 V; the European model is a separate record.
- Certified to NSF/ANSI 58 (not NSF/ANSI 53); PFOA and PFOS are on the performance data sheet, with no percentage repeated here.
- Under-sink installation with a dedicated faucet and a power outlet.
- High price: 1,299 USD list, 1,039 USD promotional on September 19, 2026. Plain link, no commission: the US affiliate link is not live yet.
This comparison is a buying aid, not medical advice. The PFAS in your water are on your city's page; this site compares results with its 0.5 ng/L health benchmark for the sum of PFOA + PFOS + PFNA + PFHxS and with the 4 ng/L legal reference. No certified filter guarantees reaching those values.
PFAS reduction
| PFAS (PFOA/PFOS) | IAPMO R&T certification to NSF/ANSI 58; the product page lists PFOA and PFOS among the reduced substances specified on the performance data sheet Source: https://www.waterdropfilter.com/products/reverse-osmosis-system-x12 (retrieved 19 September 2026)
Certification NSF/ANSI 42&58&372 Certified. Reduced substances TDS, PFOA, PFOS, Chlorine, Fluoride, Barium, Arsenic, Salt, Sediment, Chromium-VI, Lead, Microplastics, Odor and more. |
|---|---|
| Type of evidence | Independent certification Certified to NSF/ANSI 58, not to NSF/ANSI 53. No percentage is quoted: the page's statement that the filter is 'certified by SGS to reduce over 1,000 different impurities' is a manufacturer-commissioned test, not the certification. |
| Substances covered | PFOA, PFOS |
Certifications and tests
| Standard | Status | Body | What the standard covers | Published claims |
|---|---|---|---|---|
| NSF/ANSI 58 | Certified | IAPMO R&T | Reverse osmosis systems: TDS reduction and the health-related claims listed on the manufacturer's performance data sheet. Certified to NSF/ANSI 58 only for PFAS: the X12 is not certified to NSF/ANSI 53. PFOA and PFOS are listed on the page among the reduced substances specified on the performance data sheet. The page's 'View the Report' button opens the user manual; the IAPMO listing was not read independently. | PFOA, PFOS, TDS, fluoride, arsenic, chromium VI, lead, barium Source (retrieved 19 September 2026) |
| NSF/ANSI 42 | Certified | IAPMO R&T | Aesthetic effects: chlorine taste and odour. | chlorine, odour Source (retrieved 19 September 2026) |
| NSF/ANSI 372 | Certified | IAPMO R&T | Lead content of materials in contact with drinking water. | low lead materials Source (retrieved 19 September 2026) |
The facts
| Type | Under-sink reverse osmosis. Tankless under-sink reverse osmosis, 11 filtration stages with a 0.0001 µm RO membrane, LED function in the water path, alkaline remineralisation; 1200 GPD; 3:1 pure-to-drain ratio; smart faucet with TDS display; 110 V US power supply. |
|---|---|
| Other contaminants claimed | TDS, fluoride, arsenic, chromium VI, lead, barium, chlorine, microplastics |
| Capacity | 1200 GPD (about 4,540 L a day), tankless; fills a cup in about 3 seconds |
| Cartridge changes |
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| Estimated running cost | no euro price The brand's own comparison table gives an average annual filter cost of 172.97 USD for the X12; US prices only, no euro price exists for the US store. |
| Installation | Under sink, DIY · Power outlet needed Under-sink connection to the cold water line and the drain, a hole for the smart faucet, and a power outlet for the pump and LED function (110 V US supply). |
| Price | Over $500. List price seen on 19 September 2026: US$1,039.00 (was US$1,299.00). Prices change; the store's price is the one that counts. |
| Where it is delivered | United States US store (waterdropfilter.com, 'United States'). The European Waterdrop listing with its EU referral link is a separate product record and is never shown on US pages. Source (retrieved 19 September 2026) |
How we checked
- US product page read on 2026-09-19: IAPMO R&T certification statement (NSF/ANSI 58 and 372), 'Certification NSF/ANSI 42&58&372' in the specification table, PFOA and PFOS in the reduced substances list, 1200 GPD, 3:1 ratio, 1,299.00 USD list price with a 1,039.00 USD promotion, average annual filter cost 172.97 USD.
- Replaces the G3P800 US record: the G3P800 is no longer sold new on waterdropfilter.com (docs/affiliate-country-matrix.md section 8, 2026-09-19).
Sources
- https://www.waterdropfilter.com/products/reverse-osmosis-system-x12 (retrieved 19 September 2026)
Data checked on 19 September 2026. The records were prepared with the help of AI from the manufacturers' pages and documents, then every figure was re-read at the source named.