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Gravity water filters and NSF Standards hoax

Gravity water filters and NSF Standards hoax

Before purchasing a gravity water filter check if it is NSF Certified. Make sure it is "NSF Certified", and nit "Tested to NSF Standards"" or "meets NSF standards" or any other similar phrase. ;Unless your filter system is NSF Certified, all the claims it makes have not been verified by NSF.

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