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Showerhead Filter Certification

The certification of showerhead filters by third-party organizations such as NSF International and the Water Quality Association.

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Jan 13, 2026
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What third‑party certifications or lab tests exist for showerhead filters and what do they measure?

Third‑party certification for showerhead filters is dominated by NSF/ANSI standards and independent certifiers such as IAPMO and the Water Quality Association (WQA), with testing that commonly targets...