The PS 30 Plus power scrubber attachment for Karcher K series pressure washers comes as a three part kit including two extensions. Thanks to its rectangular shape it is ideal for cleaning right up against edges and into corners, for example on steps. Compatible with the following Karcher machines (may also be suitable for models introduced after this list was compiled):K 2 ClassicK 2 HOME T150K 2 HorizontalK 2 Power ControlK 2 Power Control HomeK 3 ClassicK 3 HorizontalK 3 Power ControlK 3 Power Control Car & HomeK 3 Power Control HomeK 4 ClassicK 4 Power ControlK 4 Power Control Car & HomeK 4 Power Control Car & Home PlusK 4 Power Control HomeK 4 Premium Power Control Car & HomeK 5 ClassicK 5 Power ControlK 5 Power Control Car & HomeK 5 Power Control HomeK 5 Premium Smart Control *GBK 7 PowerK 7 Premium Smart Control *GBK 7 Premium Smart Control HomeK 2 Compact Car & HomeK 2 Full ControlK 2 Full Control H