Fondsites Labs
Methodology
Water Filter Claim Audit Method
A cautious method for matching filter marketing to exact model, certification, and contaminant language.
Method goal
Separate a broad product promise from the exact claim that can be checked against official certification or product documentation.
This page describes a method. It does not claim test results unless results are actually present.
What to measure or document
- Brand, exact model number, replacement cartridge, and product page URL.
- Named contaminant, standard number, reduction language, and capacity claim.
- Certification database result or official manual language.
Equipment needed
- Product label or manual.
- Manufacturer page and certification listing.
- Local water report or relevant lab test.
- Water filter check log.
Step-by-step method
- Copy the exact product model and cartridge model.
- Write the exact claim, including contaminant names and standard numbers.
- Check whether the exact model appears in a credible certification listing.
- Match the listed contaminant to the concern in the water report or test.
- Record replacement interval, flow limits, and any installation condition.
Data table template
| Filter model | Cartridge | Claim wording | Standard | Certifier listing | Concern | Replacement interval | Notes |
|---|---|---|---|---|---|---|---|
Common mistakes
- Treating one certified model as proof for a different cartridge or bundle.
- Confusing taste/odor claims with health-related contaminant reduction.
- Ignoring replacement interval, installation, and local water conditions.
Limitations
This method does not test water quality.
Private wells and health-related concerns need appropriate testing and professional interpretation.
This page describes a method. It does not claim test results unless results are actually present.