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About This Item

 

Full Description

The purpose of this Standard is to establish minimum requirements for materials, design and construction, and performance of residential cation exchange water softeners. This Standard also specifies the minimum product literature that manufacturers shall supply to authorized reqpresentatives and owners, as well as the minimum service-related obligations that manufactuers shall extend to owners.

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 conform to the applicable requirements therein.
 

Document History

  1. NSF 44-2017

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    Residential Cation Exchange Water Softeners

    • Most Recent
  2. NSF 44-2016


    Residential Cation Exchange Water Softeners

    • Historical Version
  3. NSF 44-2015


    Residential Cation Exchange Water Softeners

    • Historical Version
  4. NSF 44-2014


    Residential Cation Exchange Water Softeners

    • Historical Version
  5. NSF 44-2013


    Residential Cation Exchange Water Softeners

    • Historical Version
  6. NSF 44-2012


    Residential Cation Exchange Water Softeners

    • Historical Version
  7. NSF 44-2009


    Residential Cation Exchange Water Softeners

    • Historical Version
  8. NSF 44-2007


    Residential Cation Exchange Water Softeners

    • Historical Version
  9. NSF 44-2004


    Residential Cation Exchange Water Softeners

    • Historical Version
  10. NSF 44-2002e


    Residential Cation Exchange Water Softeners

    • Historical Version
  11. NSF 44-2002


    Residential Cation Exchange Water Softeners

    • Historical Version
  12. NSF 44-2001


    Residential Cation Exchange Water Softeners

    • Historical Version