Waterdrop Plus 644845 Refrigerator Water Filter - Reduces Lead & PFAS

In this review the Waterdrop Plus 644845 refrigerator water filter is examined for everyday homeowners who need a reliable replacement for Bosch and compatible models; its single biggest selling point is the combination of broad contaminant reduction and easy fit for many refrigerators. The reviewer found the filter performs as a direct swap for Bosch 644845 and similar part numbers, offers verified reductions for lead, PFAS, pharmaceuticals and chlorine, and installs quickly with no leaks when seated correctly, making it a practical choice for anyone wanting safer-tasting water without changing plumbing.

Key Features

• NSF and IAPMO certified: Independent certifications confirm reductions across NSF/ANSI 401, 53, 42 and 372 for dozens of contaminants, which ensures noticeably cleaner drinking water.
• Lead and PFAS reduction: Lab testing shows strong removal of lead and a 95.3% reduction in PFOA and PFOS, improving safety for households concerned about heavy metals and persistent chemicals.
• Coconut shell carbon block: The filter uses high-surface-area carbon made from coconut shell to reduce chlorine, sediment and taste- and odor-causing compounds for better flavor.
• Fast flow, leak-resistant fit: Precision-engineered housing and pore structure allow good water flow while preventing the common leak issues seen with cheaper replacements.
• Retains beneficial minerals: The cartridge design reduces contaminants while allowing many natural minerals to pass, preserving a natural taste profile.
• Simple maintenance aid: Includes installation stickers and a clear replacement guideline of 300 gallons or 6 months to maintain filtration performance.

Who It's For

The Waterdrop Plus 644845 is best for owners of Bosch 644845, 11034152 and other compatible refrigerators who want a third-party replacement with authoritative NSF and IAPMO certifications and a focus on removing lead, PFAS and pharmaceuticals. It suits households that value tested performance, easy installation and improved water taste without replacing entire systems.

Those who should look elsewhere include people who require proprietary-brand warranty assurances from their refrigerator maker or buyers who need a different model size such as BORPLFTR20; note this product replaces BORPLFTR10 rather than BORPLFTR20, so compatibility must be confirmed before purchase.

Pros & Cons

Pros

• Certified reductions for lead, PFAS and a wide list of contaminants give strong confidence in water safety.
• Good fit and easy installation with minimal reports of leakage when installed per instructions.
• Improved taste and reduced chlorine from coconut shell carbon delivers immediate sensory benefit.
• Includes reminders and clear replacement guidance to keep filtration effective.

Cons

• Not compatible with BORPLFTR20 models, so shoppers must verify exact part number before buying.
• Some users report occasional compatibility quirks with less common Thermidor-modeled refrigerators.

Specifications

Our Verdict

The Waterdrop Plus 644845 is a solid, cost-effective replacement filter for compatible Bosch and similar refrigerators, offering extensive third-party certifications and strong reductions for lead and PFAS while preserving water taste. It represents good value for households wanting tested contaminant removal and easy, leak-free installation, provided buyers confirm compatibility with their exact model.

Frequently Asked Questions

Is this filter compatible with my Bosch refrigerator?
It fits Bosch models listed such as 644845 and 11034152 and many equivalents; confirm your existing part is BORPLFTR10-type, not BORPLFTR20, before ordering.

How often should the filter be changed?
Waterdrop recommends replacing after about 300 gallons or 6 months, though local water quality may require more frequent changes.

Does it remove PFAS and lead?
Yes; third-party testing and certifications indicate strong reduction of lead and a tested 95.3% reduction in PFOA and PFOS.