D.K.L. 4 is a noncorrosive specific descaler with built-in indicator which means you the end of the descaling.
It allows a total descaling safely all Milt or limestone deposits that obstruct temperature exchangers, condensers, evaporators, and engine cooling circuits.
He respects the ferrous metals. For other metals like copper, aluminum, brass or chrome, simply rinse.
It does not damage the plastics and rubbers. D.K.L. 4 to be used without danger: it emits no harmful or corrosive steam.
D.K.L. 4 is a product not subject to the labelling of preparations and hazardous substances safety.
Packaged in a can of 5L.