Water Hardness Testing Paper provides an easy way to determine water hardness in seconds. Two test papers are packaged in one convenient plastic dispenser with enough paper for over 100 tests.
Easy way to determine water hardness in seconds. Two test papers are packaged in one convenient plastic dispenser. The first test paper allows you to measure water hardness between 0–20 grains per gallon. The second measures water hardness between 10–50 grains per gallon. Both test papers are 4.5 meters in length, enough for over 100 tests.
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