Waterdrop WD-F03 Water Filter
- Water Filter
- 1
- 12.64 pounds
- 2 × 10.5 × 2 inches
- More reviewed than 89%
A single-cartridge taste and odor filter, reasonable if your housing takes this exact size and you don't need broader contaminant certification.
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How it ranks among the 76 water filters we track
4.7★ across 3,900 Amazon ratings, Bayesian-smoothed toward the category average.
3,900 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Modest tracked demand last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 76 water filters we track - how the scorecard works · full water filters data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The Waterdrop WD-F03 is a single replacement filter cartridge, NSF 42 and NSF 372 certified, sized at about 1.97 x 10.5 x 1.97 inches. It's a single-unit reorder rather than the multi-packs seen elsewhere in this batch, aimed at owners restocking one filter at a time.
With only NSF 42 and 372 certification, the WD-F03 is built around chlorine taste and odor reduction and lead-free construction rather than the broader emerging-contaminant coverage that filters carrying NSF 401 and 53 offer, so it's a narrower-scope filter by comparison.
- NSF 42 / NSF 372 certified
- 1.97 x 10.5 x 1.97 in cartridge
- Single-unit pack
- Chlorine taste and odor reduction certified
Who it's for
Buyers who need a single replacement cartridge sized 1.97 x 10.5 x 1.97 inches and only need taste and odor reduction, not broader NSF 401/53 contaminant coverage.
Strengths and trade-offs
Drawn from this product's published specifications.
- NSF 42 and NSF 372 certified
- Sold as a single unit for targeted reordering
- Narrower certification scope than filters carrying NSF 401/53
- No compatibility list for specific systems
Performance notes
NSF 42 certification confirms chlorine taste and odor reduction was independently tested, while NSF 372 confirms lead-free construction of the cartridge itself. Neither certification covers the wider contaminant list that NSF 401 or 53 would test for.
Specifications
| Brand | Waterdrop |
|---|---|
| Model | WD-F03 |
| Pack Count | 1 |
| Weight | 12.64 pounds |
| Dimensions | 2 × 10.5 × 2 inches |
| Certification | NSF |
Other Waterdrop water filters
How it compares
This product against the closest alternatives we track in water filters.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Waterdrop WD-F03 Water FilterThis product | 4.7 / 5 | 3,900 | 4.1 / 5 |
| Filterlogic FL-RF46 Water FilterFilterlogic | 4.5 / 5 | 6,368 | 4.4 / 5 |
| Golden Icepure GP-RWF0600A Water FilterGolden Icepure | 4.7 / 5 | 3,800 | 4.4 / 5 |
| Glacier Fresh GF-700P Water FilterGlacier Fresh | 4.7 / 5 | 1,500 | 4.3 / 5 |
| Pureline PL-400-S Water FilterPureline | 4.7 / 5 | 6,300 | 4.1 / 5 |
Similar water filters from other brands
Questions about the Waterdrop WD-F03
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How many filters come with the WD-F03?
One, unlike the three-packs common elsewhere in Waterdrop's lineup.
What does NSF 372 cover?
It confirms the cartridge is built without lead, a construction standard separate from the NSF 42 taste and odor reduction certification.
Will it fit my existing housing?
Check the 1.97 x 10.5 x 1.97 inch dimensions against your current cartridge; Waterdrop hasn't published a specific compatible-models list in this data.