DUROVAL® indicator fluid refill pack

The Duroval Indicator Refill Pack is a small bottle of liquid indicator required to restore the water hardness test kit to working order.

8 ml bottle of DUROVAL® liquid indicator

Refill bottle for determining water hardness across all hardness ranges. This is used in a Duroval titration test kit so that, when measuring water hardness, it is immediately apparent when the chemicals react and the result is confirmed. In combination with the titration solution, this leads to a colour change at the endpoint. This colour change allows you to determine water hardness without the need for technical equipment.

What is the refill pack suitable for?

The refill pack is only suitable if you already have the appropriate test kit and the colour indicator needs replacing. It is not suitable as a standalone product for measurement without a test kit.

What does the liquid indicator do?

The indicator ensures that the endpoint of the titration becomes visible, i.e. the exact moment when the colour change occurs. Without this colour change, it is difficult to achieve accurate results.