The Karcher FJ6 foam nozzle provides a powerful foaming action for easy cleaning of all surfaces. It is ideal for vehicles, garden furniture, faƒÂ§ades, stairways, caravans, paths, walls, terraces, driveways etc. The FJ6 container is approx. 0.6 litres. To use the Karcher FJ6 foam nozzle, simply pour the Karcher detergent directly into the foam nozzle, attach the nozzle to your pressure washer gun, and apply the foam. The detergent dose can be easily adjusted on the foam nozzle using the yellow dial on top, while the jet level can be easily adjusted as required. The FJ6 foam nozzle is suitable for all Karcher K2-K7 pressure washers. This product is ideal for use with the Karcher Ultra Foam Cleaner. Size: 0.6L.