Water Treatment Products Testing and Certification Services
NSF offers testing and certification services for many water treatment products, including filtration media, equipment and chemicals. Provide proof that your products comply with the highest international standards.
Water Treatment and Filtration Systems
Test or certify your water treatment and filtration systems, whether they are designed for municipal, point-of-use or point-of-entry applications.
Filtration Media Certification
Test or certify your water filtration media to meet public health and regulatory requirements.
Drinking Water Treatment Chemicals Certification
Certify your drinking water treatment chemicals to meet regulatory requirements around the world.
Regional Certification and Approvals
NSF helps manufacturers of water treatment, distribution, plumbing and residential water filtration products gain access to global markets.
Standards Updates: NSF/ANSI/CAN 372-2022 and NSF/ANSI/CAN 61-2022
Forever Chemicals and the Advancement of Filtration Standards
Survey of ASDWA Members on Specifications of NSF/ANSI/CAN 60, 61, and 372
News and Events
Plumbing Standard Revisions Tighten Lead Leaching Criteria in Drinking Water
September 22, 2020
Drinking Water Treatment Units Must Now Meet Stricter Requirements for Lead Reduction Certification
February 6, 2020
Major Revision to Drinking Water Treatment Standard Allows UV-LED Technology to Treat Microorganisms
November 14, 2019
Concerned About Lead in Your Drinking Water? Choose a Filter Certified to Reduce Lead
November 7, 2019