Faucets and Plumbing
Certification for faucets, pipes and plumbing fixtures helps you find products that have been tested for safety and performance.
Faucets and Plumbing Products
Faucets and plumbing products intended for contact with drinking water should be tested and certified to NSF/ANSI Standard 61: Drinking Water System Components.
Lead in Schools and Older Homes
Lead is a common hazardous contaminant found in the plumbing systems of older homes, businesses and schools.
Plumbing Product Markings
Learn about common markings found on plumbing system components.
NSF International’s scientists give you information about water filters as well as reverse osmosis and other water purification systems.Read more