Laica J81-AA Instructions page 45

Notes
This product has been tested
and certified by the Water Quality
Association according to NSF/ANSI
42 for the reduction of Aesthetic
Chlorine and to NSF/ANSI 53 for
the reduction of Copper, as verified
and substantiated by the test data,
and to CSA B483.1.
Certifi ed NSF/ANSI 42
Material Safety Only
45