Welcome to NSF International's global testing and certification program website for drinking water treatment units. Here you will find information about the services that NSF offers to help you set your product apart from others in the marketplace. No matter if you are seeking to certify your system to an existing NSF/ANSI standard or need a customized testing solution, NSF has a program to meet your needs.
For more than 65 years, NSF has been the trusted third-party testing organization for product manufacturers that deliver and treat drinking water. Contact NSF today to learn how the NSF Mark tells consumers as well as the regulatory community that your products are Tested. Certified. Safer.™