M MINGLE Foam Cannon, Pressure Washer Wand Extension Adapter, Replacement Parts for Karcher K2, K3, K4, K5, K6, K7 Pressure Washer, 1/4 Inch Quick Connector
Amazon.com: High Pressure Water Hose Extension and Nozzle for Pressure Washer Fit for Karcher K2 K3 K4 K5 40Mpa/5800Psi (15m/49ft, Type2) : Patio, Lawn & Garden
Amazon.com: M MINGLE Pressure Washer Adapter for Gun and Power Washer, Only Compatible Karcher Hose, to M22 14mm Female Fitting : Patio, Lawn & Garden