The replacement gun is an ideal replacement for Kärcher k2 k3 k4 k5 k6 k7 pressure washer to replace the worn Kärcher spray gun. With Quick Connect connectors for quick installation. This trigger gun uses a bayonet fitting for connecting to the foam lance and a quick connector for the high-pressure hose. Equipped with a child-resistant safety lock, it prevents injuries from misuse. Maximum pressure: 150bar; Maximum temperature: 60°C Suitable for commercial and private use with its robust exterior body. Easily removes dirt and algae from patios, decks, paths, paving stones, walls, and garden furniture.