Historical
NSF/ANSI 44-2018
Residential Cation Exchange Water Softeners
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 representatives and owners, as well as the minimum service-related obligations that manufacturers shall extend to owners.
CONTENT PROVIDER
NSF International [nsf]
NSF International [nsf]