General description The water filter with filter insert (5.731-050.0) is designed for all Karcher high-pressure cleaners with a 3/4 inch water connection. This pack includes three filters that effectively protect the pressure washer pump, extending its lifespan by preventing dirt and particles from entering. Technical specifications Model: 5.731-050.0 Connection size: 3/4 inch Compatibility: Karcher pressure washers K2-K7, Lavor, Elitech, Champion, Nifisk Installation Unscrew the cap to loosen and clean the filter. Reattach the cap to the pump after cleaning. Usage Compatible with any pressure washer that has a 3/4 inch thread.