Help to remove limescale and make your device last for longer with the Kärcher Descaling Sticks for Steam Cleaners. This pack of nine descaling sticks are easy to use - simply use the appropriate number, depending on the size of the tank, mixed with tepid water. After they have been allowed to act, rinse out the tank at least twice and you're done. Fully biodegradable, the Kärcher Descaling Sticks for Steam Cleaners are environmentally friendly and will help to prolong the life of your appliance with continued use.