Foam Cannon Pro with Karcher K Adapter to fit all Karcher K Series Pressure Washers. from Karcher K2, K3, K4, K5, K7, K9. Foam Cannon Pro and Foam Cannon S are new generation Foam Cannons, powered by MJJC’s new generation foam technology. This new technology is stronger and creates more, thicker foam with less soap...

Foam Cannon S with Karcher K Adapter to fit all Karcher K Series Pressure Washers. from Karcher K2, K3, K4, K5, K7, K9. Foam Cannon S are new generation Foam Cannons, powered by MJJC’s new generation foam technology. This new technology is stronger and creates more, thicker foam with less soap, even with smaller pr...