Countertop reverse osmosis · checked 16 Oct 2026
Waterdrop Instant Hot Countertop RO System - Waterdrop K19-H
Model WD-K19-H · replacement filter WD-K19RF
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 | “6-Stage Filtration – Effectively reduces TDS, fluoride, lead, and other contaminants.” brand source | – | – | Brand claim — no certification cited | brand pagechecked 16 Oct 2026 |
| Total dissolved solids (TDS) | “Certified by NSF/ANSI 372 | Protect family's health from lead | Reduces TDS” brand source | CSA B483.1 | IAPMOfile W-17250 | Certified — IAPMO listing, checked 16 Oct 2026 | IAPMO listingchecked 16 Oct 2026 |
| Fluoride | Same statement as for Lead. brand source | – | – | Brand claim — no certification cited | brand pagechecked 16 Oct 2026 |
| Nitrate | “Reduces TDS, Nitrate*, Fluoride*, Arsenic*, Lead*, Copper*, Chromium-VI*, Chlorine*, Chloramine*, and Chloroform*. *Tested by a third-party laboratory.” brand source | – | – | Brand claim — no certification cited | brand pagechecked 16 Oct 2026 |
| Arsenic | Same statement as for Nitrate. brand source | – | – | Brand claim — no certification cited | brand pagechecked 16 Oct 2026 |
| Copper | Same statement as for Nitrate. brand source | – | – | Brand claim — no certification cited | brand pagechecked 16 Oct 2026 |
| Chromium-6 | Same statement as for Nitrate. brand source | – | – | Brand claim — no certification cited | brand pagechecked 16 Oct 2026 |
| Chlorine | Same statement as for Nitrate. brand source | – | – | Brand claim — no certification cited | brand pagechecked 16 Oct 2026 |
| Chloramine | Same statement as for Nitrate. brand source | – | – | Brand claim — no certification cited | brand pagechecked 16 Oct 2026 |
| Other | Same statement as for Nitrate. brand source | – | – | Brand claim — no certification cited | brand pagechecked 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 |
|---|---|---|---|
| WD-K19RF composite RO filter | 12 months or 1,100 gallons“K19RF Filter Provides up to 12 months or 1,100 gallons of clean water.” | 1 | brand sourcechecked 16 Oct 2026 |
Certification listings found
IAPMO · CSA B483.1 · file W-17250
Qingdao Ecopure Filter Co. Ltd lists WD-K19-H-US, BC-WD-K19H, WD-K19-S-AU and 2 more
TDS
Open the listing · checked 16 Oct 2026
IAPMO · NSF/ANSI 58 · file W-17249
Qingdao Ecopure Filter Co. Ltd lists WD-K19-H-US, BC-WD-K19H, WD-K19-S-AU and 2 more
TDS
Open the listing · checked 16 Oct 2026
IAPMO · NSF/ANSI/CAN 372 · file W-13936
Qingdao Ecopure Filter Co. Ltd lists WD-K19-H-US, BC-WD-K19H, WD-K19-S-AU and 2 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-K19-H
- NSF listing search: Waterdrop
- WQA listing search: WD-K19-H
- WQA listing search: Waterdrop
- IAPMO R&T listing directory