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Trust the original Hach test kit!
Simple drop-count titration measures hardness as grains per gallon CaCO₃ (1 gpg = 17.1 mg/L).

Utilizes drop count titration with a range of 1-30 gpg.
Contains approximately 100 tests.

145300, Hardness Test Kit, 5B

SKU: 145300
Expected to ship in about four weeks
  • Utilizes drop count titration - a simple, economical titration method

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