Observed arrival · 2026-09-01
The Filter Tap Reads the Fine Print on Shower Filters
An evidence-checked buying guide that ranks shower filters while correcting the claim that they soften hard water.
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Field notes
The guide organizes its comparison around a technical distinction that retailers often blur: chlorine reduction is not the same as ion-exchange softening. Its visible methodology includes 15 filters ranked spec by spec, four products with certifications traced to issuing bodies, and a stated count of zero units tested directly. External lab work is attributed to WaterFilterGuru rather than presented as original testing.
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