Waterdrop WDS-F27 Water Filter
- Water Filter
- 2
- 4.4 × 2.2 × 9 inches
- NSF
- More reviewed than 99%
A 2 pack replacement cartridge with two NSF certifications, best bought after confirming it matches your specific Waterdrop unit.
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How it ranks among the 76 water filters we track
4.7★ across 39,300 Amazon ratings, Bayesian-smoothed toward the category average.
39,300 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 WDS-F27 is a replacement filter cartridge sold as a 2 pack, certified to NSF/ANSI 42 and 372, meant to refill an existing Waterdrop dispenser rather than serve as a standalone unit.
This listing covers the cartridge only, not a pitcher or dispenser housing, and it does not spell out which specific Waterdrop models it fits. Anyone buying it as a replacement should check their own unit's model number against the listing before ordering.
- 2-pack replacement cartridges
- NSF/ANSI 42 certified
- NSF/ANSI 372 certified
- 4.37" x 2.2" x 8.97" size
Who it's for
Fits current Waterdrop system owners who need replacement filters on hand. Not for shoppers looking for a complete pitcher or dispenser, since this is the cartridge alone.
Strengths and trade-offs
Drawn from this product's published specifications.
- Dual NSF certification for taste and lead-free materials
- 2 pack keeps a spare on hand
- Compact 4.37 x 2.2 x 8.97 inch cartridge size
- Does not include a pitcher or dispenser housing
- Compatible models are not listed here, so fit should be confirmed first
Performance notes
NSF/ANSI 42 certification covers testing for chlorine taste and odor reduction, while NSF/ANSI 372 confirms the cartridge meets lead-free material requirements. Both are third-party standards rather than claims made by the seller.
Specifications
| Brand | Waterdrop |
|---|---|
| Model | WDS-F27 |
| Pack Count | 2 |
| Dimensions | 4.4 × 2.2 × 9 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 WDS-F27 Water FilterThis product | 4.7 / 5 | 39,300 | 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 WDS-F27
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What does NSF/ANSI 42 certification confirm?
Testing for chlorine taste and odor reduction.
What does NSF/ANSI 372 certification confirm?
That the cartridge meets lead-free material requirements.