Descaling powder for all Karcher steam cleaners and steam units Simply add descaling powder to the unit with warm water, leave overnight and rinse through in the morning This descaking powder also effectively descales other hot-water devices, such as kettles and coffee machines By using the descaling powder it ensures your steamers longevity and low energy use Discover the Kärcher range of Home & Garden and Professional accessories and get the most out of your Kärcher cleaning machine