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Water Hardness Test Kit – Accurate & Fast


  • Drop count titration test kit, it measures Total Hardness of Water.
  • Range/sensitivity is 1 drop = 5 ppm (0.5°f) CaCO3.

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Hardness Test Kit for Water (Titrant / Indicator)

This water testing kit tests for Total Hardness (calcium and magnesium hardness) by using the dropper bottle method.

Simple and economical drop-count titration/indicator (2 in1 single bottle) measures water hardness as a french degree (°F or f) which defined as 10 mg/L CaCO3 (10 ppm). 

Widely used to measure total hardness of mains, town, bore, river, lake, raw, softener feed water and all types of water with moderate to high level hardness, also used for testing boiler, cooling and industrial process water.

Range/sensitivity is 1 drop = 10 ppm (1°f) CaCO3. (test tube filled to 5ml).

Number of tests: 300 french degrees (drops) each bottle.

With this water hardness testing kit, simply count the number of drops required to change the solution colour from red to green to determine hardness concentration, each drop = 10 ppm CaCO3 total hardness (number of drops = total sample hardness in °F as CaCO3). This Colour change from red to green is the endpoint of the titration.
If one drop produces a green colour, total hardness is < 10 ppm.


Water testing kit contains:

  • 1 or 2 x 15ml titrant/indicator hardness test bottles
  • 1 x 5-10ml measuring tube 
  • Test instructions paper


Made in Italy.
FREE Delivery Australia Wide.

More Water Testing Kits are available ... Click HERE

Additional information


2 bottles, 1 bottle


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