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NSF/ANSI 53-2025

Drinking Water Treatment Units - Health Effects

It is the purpose of this standard to establish minimum requirements for materials, design and construction, and performance of POE and POU DWTS that are designed to reduce specific health-related contaminants in public or private water supplies. Such systems include POE DWTS used to treat all or part of the water at the inlet to a residential facility or a bottled water production facility, and includes the material and components used in these systems. This standard also specifies the minimum product literature and labeling information that a manufacturer shall supply to authorized representatives and system owners, as well as the minimum service-related obligations that the manufacturer shall extend to system owners.

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Amendments & Corrections
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