JBL KH TEST SET

Regular price $13.40

  • Recommended level for fresh water: 4-8° dKH.
  • 1 drop = 1° dKH.
  • Colour change from blue to yellow.
  • The number of used drops = level of carbonate hardness.
  • For this reason this test does NOT require a color scale.
  • The most important text in aquatics since the KH stabilizes the pH value.