Use this convenient water hardness test kit to help determine the hardness of your tap water.
BRITA Water Hardness Test Kit
Total hardness test kit helps determines the local total hardness before installing PURITY Clean Extra or other suitable BRITA water filter system.
Item no.: 536754
For additional identification of the local total hardness. The total hardness indicates the total calcium and magnesium ions in the water. Brita 536754
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