The replacement gun is an ideal replacement for Karcher K2K3K4K5K6K7 pressure washer as a replacement for the worn original Karcher spray gun. Quick Connect connectors for quick installation. This spray gun uses a bayonet connection to connect to the spray lance foam lance and a quick connection for the high pressure hose. Equipped with a child safety lock to prevent injuries in case of abuse. Max. 150 bar. Maximum temperature: 60 °C. Suitable for commercial and domestic use with its robust exterior body.