NSF International, an independent, not-for-profit organization, helps protect you by writing standards for food, water, wastewater, air and consumer goods (www.nsf.org). NSF also performs product testing and certification on virtually all plumbing products and food service equipment. NSF... (more)
NSF International, an independent, not-for-profit organization, helps protect you by writing standards for food, water, wastewater, air and consumer goods (www.nsf.org). NSF also performs product testing and certification on virtually all plumbing products and food service equipment. NSF International offers WaterSense (partnership program sponsored by USEPA) certifications for high-efficiency toilets. (less)
