Setting up a Karcher K4 pressure washer to make it much better for washing cars and auto detailing. The first upgrade is a Swivel Gun Pro which requires a Karcher K series adapter set which converts to the standard M22 hose connections. Then you can add a quick connect kit and attach your gun, extension wand and wide mouth foam cannon #pressurewashing #carguys #karcher #carcleaning #smallbusinesscheck #detailingcars #detailing #pressurewasher #foamcannon | McKillans