NSF/ANSI 44-2012

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 minimumproduct literature that manufacturers shall supply to authorized representatives and owners, as well as theminimum service-related obligations that manufacturers shall extend to owners.

This product replaces:NSF/ANSI 44-2009 - Residential Cation Exchange Water Softeners