A two part adaptor set for attaching Quick Connect extension hoses to Karcher pressure washers with screw thread connections. K3-K7 series pressure washers from 2008 onwards are Quick Connect, whereas older models use screw thread connections. This adaptor is therefore useful if purchasing a new hose for an older model of pressure washer. Compatible with the following Karcher machines:G 7.180K 2 Battery SetK 2 CompactK 2 Compact CarK 2 Compact Car & HomeK 2 Compact HomeK 2 Full ControlK 2 Full Control CarK 2 Full Control Car & HomeK 2 Full Control HomeK 2 Power ControlK 2 Premium Full ControlK 2 Premium Full Control Car & HomeK 2 Premium Full Control HomeK 2 Premium Power ControlK 2 Universal EditionK 2 Universal Edition CarK 2 Universal Edition HomeK 2 Universal Edition OJK 3 CompactK 3 Power ControlK 3 Power Control CarK 3 Power Control Car & HomeK 3 Power Control HomeK 3 Power Control Home & PipeK 4 Compac