Amazon.com: M MINGLE Pressure Washer Gun Adapter, to 1/4'' Quick Connect Fitting, Only Compatible Karcher K2, K3, K4, K5, K6, K7 : Patio, Lawn & Garden
For Karcher K2 K3 K4 K5 K6 K7 Pressure Washer Nozzle O Ring Seal Set 2.640 729.0 Replacement Spare Parts Accessories Vacuum Clea|Vacuum Cleaner Parts| - AliExpress
KARCHER Pressure Washer Spare Inlet Elbow Part Suction Connection K 5 K3, K4 | eBay
Amazon.com: FUNTECK Foam Cannon for Karcher K Series, Adjustable Snow Cannon Foam Lance kit, Compatible with Karcher's K2/K3/K4/K5/K6/K7 Pressure Washer : Patio, Lawn & Garden