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Hard water contains dissolved minerals present as salts in solution. High water hardness causes scaling and corrosion of pipes. Total hardness is the sum of the alkaline and non-alkaline salts present in water or fluid. Two standard tests are recommended for testing water hardness to measure the calcium ion concentration and total hardness.

Ordering Information

Order Fann Part No. 210151 – Package of 50 Water Hardness Test Strips

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