These are results from testing of the wide-spectrum KDF & granulated activated carbon filter cartridges.
The test does not consider the optional fluoride, nitrate, arsenic or other cartridges which are combined to form 2, 3 and 4-canister kitchen filters.
See Table One below for the most informative data.
It shows output water vs. requirements.
INDEPENDENT LABORATORY TEST RESULTS
*No copper or zinc were added to the challenge water.
**Below limit of detection
While this test shows a reduction in these contaminants, Fluoride, Arsenic & Nitrates, CuZn has found that filtration efficacy can be inconsistent in their removal in certain water conditions. As a result, we offer & recommend the use of CuZn Nitrate (model#NR-1), Arsenic (model#AR-1) and Fluoride (model#FR-1) specialty filters be used in tandem with CuZn Wide Spectrum Filters when these contaminants are present.
Check more Water Filter tests and certifiation of products on Friends of water .