Karcher K 9 customer reviews on Australia's largest opinion site Have used it to clean the cement driveway & area under our house, washed the cars. Find helpful customer reviews and review ratings for Kärcher K2 Home Air- Cooled Pressure Washer at bookofrakostenlosrunterladen.win Read honest and unbiased product. Product Review: The Karcher K2 Compact Car & Home promises to be more versatile than many cheap pressure washers. It comes with a patio-cleaner. We put 5 through their paces. Like us on Facebook. View Amazon Prime Day Pressure Washer Deals. The K2 is lightweight, easy to move and perfect for around the garden, a great base range model that makes a great first pressure washer. One has an extra-high-pressure rotating nozzle, while the other creates a wide, flat spread.