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Itisrecommendedthatbeforepurchasingawatertreatmentunit,youhaveyourwatersupplytestedto determineyour actualwater treatment needs. SUBSTANCE NSF/ANSI StaCopper REDUCTION U.S. EPA Level*/ NSF Maximum Permissible Product Water Concentration 1.3 ppma Health Canada Guideline .1.0 ppmb TESTING PARAMETERS Influent Challenge Concentration Filter Effluent Percent Reduction Alkalinity (ppm CaCO3) Temp. (°C) pH 6.7 Actual ndard 53 3.0 ppm NSF Target – Health Effects 3.0±0.3 ppm Average 0.12 ppm Maximum 0.30