TENZI Professional cleaning agents TENZI Professional cleaning agents

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Quality guaranteed by ISO 9001:2015 certificate

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Gran Ston

Descaling boilers, dishwashers, industrial surfaces etc.


Concentrated, odourless liquid, based on phosphoric acid, designed for descaling  gastronomy devices (boilers, cauldrons, kettles, dishwashers), sanitary facilities, pools and automatic washing machines.
Excellently removes limescale created from high doses of hard water.

Application area

- metal dishes, cauldrons, pots, boilers, dishwashers

Method of use

Read product’s safety data sheet before using.
Use 10-100 ml / 1 l solution.
Uptime: 15-30 minutes.
Heaters: 300 ml / 1 l of water.
After descaling, thoroughly wash it with clean, drinking water.
Repeat the process if needed.


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