Replacement gun for Kärcher K3 – K7 series domestic pressure washers from 2008, where the high-pressure hose is connected to the gun per Quick Connect connector. Compatible products K 3.700 K 5.520 K 5.600 K 5.600 T200 K 5.70 MD K 5.700 K 5.700 T300 K 6.250 K 6.250 T300 K 6.260 K 6.300 K 6.310 T300 K 6.450 K 6.460 T400 K 7.260 T400 K 7.350 K 7.350 T400 K 7.400 K 7.410 T400 K 7.450