For-Karcher-K2 K3 K4 K5 K6 K7 Pressure Washer Nozzle O Ring Seal Set-2.640-729.0 | eBay
Seal Ring Kit for Karcher K2 K3 K4 K5 K6 K7 Pressure Washer Cleaning Accessories | eBay
Pressure Washer Gun Adapter, To Quick Connect Fitting, Only Compatible Karcher K2, K3, K4, K5, K6, K7,car Washer Water Gun Foam Pot Adapter 1/4 Quick Connect High-pressure Five Color Nozzle - Temu