To make the products safe for water distribution there must be protective barrier material, joining, and sealing materials. These materials will ensure that the water remains free from any contaminates that may be present on or in the metal, paint, gaskets, lubricants, etc. NSF/ANSI has two standards, NSF 61 and NSF 372. These standards ensure that the product meets the requirements to manufacture, sell or distribute water in North America.
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