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About This Item

 

Full Description

The manual, autoinitiated, and demand initiated regeneration residential cation exchange water softeners addressed by this Standard are designed to be used for the removal of hardness and the reduction of specific contaminants from drinking water supplies (public or private) considered to be microbiologically safe and of known quality. Systems with components or functions covered under other NSF or NSF/ANSI Standards or Criteria shall comply with those applicable requirements.

 

Document History

  1. NSF/ANSI 44-2022


    Residential Cation Exchange Water Softeners

    • Most Recent
  2. NSF/ANSI 44-2021


    Residential Cation Exchange Water Softeners

    • Historical Version
  3. NSF/ANSI 44-2018


    Residential Cation Exchange Water Softeners

    • Historical Version
  4. NSF 44-2017


    Residential Cation Exchange Water Softeners

    • Historical Version
  5. NSF 44-2016


    Residential Cation Exchange Water Softeners

    • Historical Version
  6. NSF 44-2015


    Residential Cation Exchange Water Softeners

    • Historical Version
  7. NSF 44-2014


    Residential Cation Exchange Water Softeners

    • Historical Version
  8. NSF 44-2013


    Residential Cation Exchange Water Softeners

    • Historical Version
  9. NSF 44-2012


    Residential Cation Exchange Water Softeners

    • Historical Version
  10. NSF 44-2009


    Residential Cation Exchange Water Softeners

    • Historical Version
  11. NSF 44-2007


    Residential Cation Exchange Water Softeners

    • Historical Version
  12. NSF 44-2004

    👀currently
    viewing


    Residential Cation Exchange Water Softeners

    • Historical Version
  13. NSF 44-2002e


    Residential Cation Exchange Water Softeners

    • Historical Version
  14. NSF 44-2002


    Residential Cation Exchange Water Softeners

    • Historical Version
  15. NSF 44-2001


    Residential Cation Exchange Water Softeners

    • Historical Version