Our BMI Accessories Foam Lance will attach to your pressure washer helping you wash your vehicle with tons of suds. On most Karcher pressure washers you may need a special bayonet fitting for the connection with your Foam Lance. This is where the BMI Accessories Karcher K Series Foam Lance Fitting is essential. This fitting will allow you to attach the Foam Gun to your pressure washer with ease. Simply screw one end into your pressure washers trigger and the other end into the included silver fitting. This silver fitting will then screw directly into the Foam Lance, it's that easy! Pick up a Karcher K Series Foam Lance fitting today and you will be covering your vehicle in a thick layer of foam in no time!