The karcher extension hose can cope with high pressures and high temperatures the non kink hose is made from robust dn 8 textile braid which enables greater flexibility has a brass screw in connection simply connect between gun with quick connect connector and high pressure hose compatible with karcher k3 k7 series pressure washers made from 2008 with quick connect and as of 2010 k2 with quick connect max pressure 160 bar max water feed temperature 60c length 6m