Anti Twist coupling adaptor for Karcher K series pressure washers. Easy to attach to the existing hose. Suitable for the following machines (may also be compatible with models released after this list was compiled):K 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 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 4 Full ControlK 4 Full Control Car & HomeK 4 Full Control HomeK 4 Premium Full Control Car & HomeK 4 Premium Full Control HomeK 5 Full Control PlusK 5 Premium Full Control PlusK 5 Premium Full Control Plus HomeK 7 Premium Full Control Plus HomeK4K4 HomeK4 Premium HomeK4 Silent HomeK5 Full Control HomeK5 Premium Full Control HomeK7 Premium Full Control Home Suitable for the Following HosesH 10