GENUINE KARCHER CONTROL HEAD 90016920 Fits K3.575 K 4.200 K 4.600 K 3.200 K 5.74 | eBay
Karcher Replacement O-Ring Kit for Karcher Pressure Washer Parts, Fits Trigger Guns, Spray Lances, Hoses, Brushes, 20 Pieces in the Pressure Washer Parts department at Lowes.com
Spare parts list K4 Premium (5.974-354.0)
Karcher spare parts - Kärcher Store Schreiber
Karcher K 4 Power Control 2250 PSI 1.5-Gallons Cold Water Electric Pressure Washer in the Pressure Washers department at Lowes.com
Karcher K4.600 Pressure Washer & T250 Patio - Deck Cleaner - Ex Display :: New Pre Tested