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
KARCHER O-RINGS FOR K2-K7 PRESSURE WASHERS (SET OF 2) - Add 2 Hozelock for 50p | eBay
KARCHER Pressure Washer Quick Release Hose Male End O-Ring Rubber Seals (2 Seals | eBay