The Kärcher 26428930 Adapter B is an essential, genuine Kärcher accessory designed to ensure compatibility between modern Kärcher Home & Garden high-pressure cleaners and older accessories featuring an M22 thread. This adapter facilitates the continued use of existing M22-threaded attachments with newer Kärcher pressure washer models, enhancing versatility and prolonging the life of your equipment. It is compatible with a wide range of Kärcher K-series pressure washers, including models from the K 2, K 3, K 4, K 5, and K 7 series.