Waterdrop · Whole-house
Waterdrop WHF21-FG iron & manganese whole-house: what it removes and what it costs
Model: WD-WHF21-FG (2 x 10in x 4.5in; refill WD-WF10-FG)
The Waterdrop WHF21-FG iron & manganese whole-house has no certifier listing for any of the contaminants we track. Waterdrop also claims chlorine and iron from lab tests that are not certification. For 2 people drinking and cooking with it, replacement filters cost about $160 a year.
0
certified reductions we track
—
filters per gallon at rated life
Price checked 2026-10-23. We may earn a commission.
What the Waterdrop WHF21-FG iron & manganese whole-house removes
"Certified" means a certifier (NSF, WQA, IAPMO or CSA) lists this exact product for that reduction claim; the listing is linked. "Brand test only" means Waterdrop cites a lab report but no certifier lists the claim. See certified vs. tested.
Not verified, either way (no certification or brand claim): PFAS, Lead, Chloramine, Fluoride, Arsenic, Nitrate, Chromium 6, Mercury, Microplastics, Cysts, VOCs, TDS, Bacteria and viruses, Copper, Uranium, 1,4-dioxane.
What it costs to run
Yearly cost = replacements per year × filter price, for each filter it uses; a filter is replaced at its gallon rating or its month limit, whichever comes first. Water use: all indoor water (58.6 gallons per person a day).
| Household | Gallons a year | Filters a year | Total a year | Per gallon |
|---|---|---|---|---|
| 1 person | 21,389 | $160 | $160 | 0.7¢ |
| 2 people | 42,778 | $160 | $160 | 0.4¢ |
| 4 people | 85,556 | $160 | $160 | 0.2¢ |
Replacement filters
| Filter | Rated life (gallons) | Rated life (months) | Price |
|---|---|---|---|
| WD-WF10-FG replacement (iron/manganese PP + GAC) | — | 6 Source noteGAC filter up to 6 months; PP 3-6 months waterdropfilter.com | $79.85 Source note$79.85 seen 2026-10-23 waterdropfilter.com |
Specs
- Type
- Whole-house
- Price
- $200
Source note
$199.99 (no compare-at) seen 2026-10-23. waterdropfilter.com
- Installation
- Plumber recommended
- Flow rate
- 15 gal/min
Source note
'15GPM steady flow rate'. 25-90 psi (replacement page). waterdropfilter.com
- Needs power
- No
Where it ranks
Compare the Waterdrop WHF21-FG iron & manganese whole-house
Common questions
What does the Waterdrop WHF21-FG iron & manganese whole-house remove?
The Waterdrop WHF21-FG iron & manganese whole-house has no certifier listing for any of the contaminants we track. Waterdrop also claims chlorine and iron from lab tests that are not certification. For 2 people drinking and cooking with it, replacement filters cost about $160 a year.
Does the Waterdrop WHF21-FG iron & manganese whole-house remove PFAS?
It has no certifier listing or brand claim for PFAS reduction.
How much does the Waterdrop WHF21-FG iron & manganese whole-house cost to run?
About $160 a year for 2 people ($160 for 1, $160 for 4), counting replacement filters, for all indoor water (58.6 gallons per person a day).
Data checked 2026-10-23. 102 filters tracked.