NSF Protocol P231
“Overview: Protocol P231 addresses systems that use chemical, mechanical, and/or physical technologies to filter and treat waters of unknown microbiological quality, but that are presumed to be potable.” (source)
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Multipure Water Filters
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Once you have properly tested your drinking water and learned what quality issues may need attention, then you can begin your search for the right water treatment system to address your unique water quality concerns!
