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AB1161 - $11.95
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...
FB0411 - $20.30
What exactly are the film-like deposits left on glassware in your laboratory and pots and pans at home? Those whitish deposits are actually residues of calcium and magnesium salts found in water. As these compounds become more numerous, the “hardness”...
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