Waterdrop Plus 644845 NSF 401&53&42 Certified Refrigerator Water Filter
- Water Filter
- 3
- 3
- 1.6 pounds
A budget-friendly Bosch filter replacement that fits well for most buyers, though a design mismatch caused a leak for at least one reviewer.
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How it ranks among the 81 water filters we track
4.4★ across 325 Amazon ratings, Bayesian-smoothed toward the category average.
325 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
644,845+ bought on Amazon 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 81 water filters we track - how the scorecard works · full water filters data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jun 15, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
A three-pack refrigerator water filter engineered as a replacement for Bosch 644845, 11034152 and UltraClarity REPLFLTR10 filters, plus listed compatibility with select Haier and Miele KWF1000 models.
- Replacement for Bosch BORPLFTR10, not BORPLFTR20
- NSF/ANSI 401, 53 and 42 certifications cited
- Rated for about 300 gallons or 6 months
- 3 filters included per pack
Who it's for
For households replacing an aging Bosch, UltraClarity or compatible Haier or Miele KWF1000 filter who want a cheaper alternative to OEM pricing. Not for anyone with a BORPLFTR20 filter slot.
What buyers say
From Amazon customer reviews.
Most reviewers say it installs easily into Bosch and Thermador refrigerators and tastes noticeably better than tap water, with several calling out the price savings over OEM filters. One reviewer reports the fastening design differs enough from the genuine Bosch filter to cause leaking, and another noted a slightly salty taste.
Strengths and trade-offs
Drawn from this product's published specifications.
- Fits Bosch 644845, 11034152 and UltraClarity slots
- Costs a fraction of OEM filter pricing
- Reduces lead per NSF/ANSI 53 testing
- Comes as a 3-filter pack
Specifications
| Brand | Waterdrop |
|---|---|
| Model | WDP-F25 |
| Dimensions & fit | |
| Item Weight | 1.6 pounds |
| Item Dimensions D x W x H | 2.2 × 6.5 × 8.7 inches |
| Construction & materials | |
| Material Type | Lead-Free Material, Food-Grade Material, Advanced Activated Coconut Carbon Block |
| Compatibility & installation | |
| Compatible Refrigerator Models | BOSCH B22CS50SNS, BOSCH B22CS80SNS, BOSCH B26FT70SNS |
| Included components | |
| Unit Count | 3 |
| Included Components | Month Install Stickers, Refrigerator Water Filter Replacement*3, User's Manual*1 |
| Other details | |
| Number of Items | 3 |
| Item Type Name | water filter |
| Product Benefits | Reduce phenytoin, naproxen, estrone, bisphenol, lead, benzene, mercury, PFOA&PFOS in water |
| External Testing Certification | NSF |
| Set Name | 3-pack |
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 Plus 644845 NSF 401&53&42 Certified Refrigerator Water FilterThis product | 4.4 / 5 | 325 | 4.1 / 5 |
| Frigidaire ULTRAWF Water Filter & PAULTRA Air Filter Combo PackFrigidaire | 4.7 / 5 | 12,500 | 4.7 / 5 |
| PUREPLUS ADQ747935 Replacement for LG LT1000P LT1000 Kenmore Elite 9980 LT1000PCPureplus | 4.6 / 5 | 9,800 | 4.5 / 5 |
| ICEPURE DA2900020B Refrigerator Water Filter Replacement for Samsung DA2900020AIcepure | 4.7 / 5 | 7,800 | 4.5 / 5 |
| GLACIER FRESH UKF8001 Compatible with Whirlpool Refrigerator Water Filter 4Glacier Fresh | 4.7 / 5 | 4,061 | 4.5 / 5 |
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Questions about the Waterdrop WDP-F25
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Does this Waterdrop filter fit BORPLFTR20?
No, the listing states it's a replacement for BORPLFTR10, not BORPLFTR20.
How long does the Waterdrop 644845 filter last?
It's rated for about 300 gallons or 6 months, whichever comes first.
Will this filter fit a Thermador refrigerator?
At least one reviewer confirms it fit and worked well in a Thermador unit that uses the same filter slot as compatible Bosch models.