eco!Booster with 50% higher area performance than the Kärcher power nozzle; ideal for delicate surfaces. For cold and hot water high-pressure cleaners (nozzle size 050). Compared with the Kärcher power nozzle, the eco!Booster enables 50 percent higher area performance and is ideal for cleaning delicate surfaces such as plastered facades or wooden walls. The efficiency is the result of the increased jet width and leads to lower consumption of energy and water. It is suitable for cold and hot water high-pressure cleaners (up to 85 °C) from Kärcher, is compatible with the EASY!Lock interface and has a nozzle size of 050. With the revolutionary nozzle concept, air is drawn in to direct the water stream. This enables excellent cleaning results in a shorter time, which is particularly important in sectors such as construction or vehicle cleaning. Features and benefits 50% higher cleaning performance compared to the flat jet Thorough, fast and more sustainable cleaning. 50% higher water efficiency* Saves water. * Based on the ability to clean 50 percent more area than a Kärcher standard flat jet with the same amount of energy and water. 50% higher energy efficiency* Saves energy. * Based on the ability to clean 50 percent more area than a Kärcher standard flat jet with the same amount of energy and water. Hugely versatile in application Particularly suitable for delicate surfaces such as paint or wood. Compatible machines HD 10/21-4 S Classic HD 10/21-4 S Plus HD 10/21-4 S ST Classic HD 10/21-4 SXA Plus HD 10/21-4St HD 10/25-4 S HD 10/25-4 S Plus HD 10/25-4 SXA Plus HD 8/18-4St HD 8/18-4St H HD 9/20-4 S HD 9/20-4 S Plus HD 9/20-4 S ST Classic HD 9/20-4 SXA Plus HD 9/21 G HD 9/23 De HD 9/23 G HDS 10/21 -4 St EU-I HDS 10/21 -4 St Gas -EU-I HDS 1000 Be HDS 1000 De HDS 1000 De Weed HDS 8/18 -4 St EU-I HDS 9/20-4 M HDS 9/20-4 MXA Application areas Façade cleaning Municipal applications, for example cleaning façades or fences. Vehicle cleaning Cleaning animal stables in agriculture