Waterdrop WDP-F26A Water Filter
- Water Filter
- 3
- 1.3 pounds
- 7.5 × 2.6 × 9.4 inches
A four-standard NSF certified 3 pack that offers strong contaminant coverage and change longevity for confirmed fits.
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How it ranks among the 76 water filters we track
4.7★ across 513 Amazon ratings, Bayesian-smoothed toward the category average.
513 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
This 3 pack from Waterdrop, model WDP-F26A, carries all four common NSF certifications, 42, 53, 401 and 372, and measures 7.48 x 2.6 x 9.45 inches per cartridge at 1.3 lb.
Like the Waterdrop ADQ36006101 elsewhere in this batch, this cartridge carries all four common NSF standards rather than just the taste and odor focused 42 and 372, adding 53 for health related contaminants and 401 for emerging compounds. The 3 pack format covers roughly 18 months of changes at a standard 6 month interval, more coverage per order than the 2 pack Waterdrop filter in this same lineup.
- NSF 42, 53, 401 & 372 certified
- 3 filters per pack
- 7.48 x 2.6 x 9.45 in cartridge size
- 1.3 lb per pack
Who it's for
Households replacing a filter under the WDP-F26A designation who want four-standard NSF coverage and a 3 pack's worth of changes in one order.
Strengths and trade-offs
Drawn from this product's published specifications.
- Four NSF standards: 42, 53, 401 and 372
- 3 pack covers about 18 months of changes
- Standard fridge filter dimensions
- No compatible refrigerator models listed
- Filter media material not specified
Performance notes
The four NSF standards here, 42, 53, 401 and 372, span taste and odor, health related contaminants, emerging compounds and lead free material compliance. At 1.3 lb per pack and roughly 9.45 inches long, the cartridges are sized like standard fridge filter housings.
Specifications
| Brand | Waterdrop |
|---|---|
| Model | WDP-F26A |
| Pack Count | 3 |
| Weight | 1.3 pounds |
| Dimensions | 7.5 × 2.6 × 9.4 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 WDP-F26A Water FilterThis product | 4.7 / 5 | 513 | 3.9 / 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 WDP-F26A
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How many NSF standards does the WDP-F26A meet?
Four: NSF 42, 53, 401 and 372.
How many filters are included?
A 3 pack.
How long does the 3 pack last?
At a typical 6 month change interval, three filters cover about 18 months.