Please choose the foam lance with compatible adapter for your pressure washer (Please see the dimensions for reference below):A. For Karcher K-Series pressure washer;B. For AR Blue Clean/ Black Decker / Michelin / some of Interskol/ some of Greenworks Europe/ Makita / Most of Bosch pressure washer;C. For Elitech/ Some of Interskol / YILI / Some of Huter / some of Patriot / Dawoo / Sun Joe pressure washer;D. For Nilfisk / STIHL / HUSQVARNA / Gerni / some of Greenworks pressure washer;E. For Lavor / Some of Hammer Flex / some of Interskol / some of Huter / Sterwins / Vax / Champion / Craftsman / Briggs Stratton pressure washer;F. For some of Huter / Anlu / Kolher pressure washer;G. For some of Bosch / Portland / Greenworks US / Husky / Faip / Some of Hammer Flex pressure washer;H. For Kranzle / BOSCH GHP / Water gun with thread M22-Female pressure washer;I. For some of Karcher Pro HD/ HDS pressure washer (common trigger gun with standard M22-Male outlet);J. For some of Karcher Pro HD/ HDS pressure washer (EASY FORCE trigger gun);K. For Nilfisk Kew/ some of Karcher HD professional pressure washer;L. 1/4" Quick Plug, which is a popular connector in Northen America.Description:plastic Foam Lance specifically designed to incorporate all the features of the Brass body version, which creates a super dense foam by mixing soap and high-pressure water from your pressure washer. With our own Invention patent design, it can throw an unbelievably thick and dense foam onto your car, motorcycle, floor, sidewalk, roof or other washable items.How to Use:1.Assembling the Adapter with sealing tape to Foam Lance, then Connect it to the Pressure Washer Gun or Extension Lance.2. To get dense foam, add around 20% car washing shampoo and 80% water into bottle.3. The Regulator Knob controls the amount of soap and water mixture that is drawn from the bottle.4. With Foam Lance's adjustable Fan Nozzle, you can adjust the spray pattern from a jet stream to a wide fan pattern.5. Higher pressure from pressure washer, better foam from Foam Lance. We recommend to use the pressure washer of more than 120bar (1750psi).Professional Service Respond within 24 hours during working days. Contact our online service directly if any issues.Note:1. The Foam Lance perfectly works with pressure washers between 60~160bar (900~2320psi). However It does not fit on garden hose or tape water hose.2. As there are two types of adapter for this brand of pressure washer. Please check adapter size and make sure it fits your machine. We don't take any responsibility for the incompatibility of adapter. If you are not clear, please send us the photo of your gun and lance, we will help to choose the suitable adapter.