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UL Water Product Certification

Delivering Value to the Drinking Water Treatment Unit Industry

When choosing a certifier for your drinking water treatment unit, make UL your one-stop provider for the recognition, technical expertise and customer service that comes only from the global leader in product certification.

One-stop Certification Services

UL is able to meet all of your testing needs for health effects of water treatment units. UL provides compliance testing and certification for:

  • ANSI/NSF Standard 42, Drinking Water Treatment Units - Aesthetic Effects
  • ANSI/NSF Standard 53, Drinking Water Treatment Units - Health Effects
  • ANSI/NSF Standard 44, Cation Exchange Water Softeners
  • ANSI/NSF Standard 55, Ultraviolet Microbiological Water Treatment Systems
  • ANSI/NSF Standard 58, Reverse Osmosis Drinking Water Treatment Systems
  • ANSI/NSF Standard 62, Drinking Water Distallation Systems
  • ANSI/NSF Standard 177, Shower Filtration Systems - Aesthetic Effects

DWTU Standards

UL Water Quality MarkThe Water Quality Mark - An Important Credential in Your Key Markets

  • UL's water product certification program is fully accredited in the United States and Canada
  • UL's water product certifications are accepted by all states, including California, and cities in the United States with their own water product certification requirements
  • UL's program is recognized as a certifier of water products by the U.S. Environmental Protection Agency

Contact Us

For more information on how you can leverage UL's brand for you products, please call Customer Service at +1-877-854-3577 or email CustomerService.NBK@us.ul.com.

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