Once fully assembled, design-wise the Kärcher K4 is a very aesthetically pleasing pressure washer. Narrow and tall, with a bright yellow and black ... with my Hozelock hose nozzle) and then ...

Without accessories, the K4 weighs in at 12kg while the K7 weighs in at a slightly bulkier 17.7kg. Hose length is important, too, because it means you might not necessarily have to more the ...