General description Foam Gun for Karcher K2 K3 K4 K5 K6 K7 is a versatile foam cannon designed to create soft and fluffy snow foam, making the cleaning process fun and easy. This foam gun is compatible with Kärcher pressure washers K2 through K7, allowing for efficient and effective cleaning while saving water and respecting the environment. Technical specifications Pressure Range: 2100 PSI / 15 MPa Bottle Capacity: 700 ml Construction Material: Solid brass, nylon bottle, and high-density polyethylene Maximum Water Temperature: 60 °C Foam Consumption Adjustable: Yes Adjustable Nozzle Width: Yes Installation Glue the PTFE tape onto the brass tube (two strands required, each cable needs 50 cm of PTFE tape). Connect the connector/adapter with the brass hose and suction hose to the foam launcher unit. Fill the liquid bottle with the desired amount of shampoo. Fill the liquid bottle with water (for optimal results, use warm water; a mixture of 20% shampoo and 80% water is recommended).