The Karcher 5.731-652.0 Pressure Washer Filter With Weight is a replacement filtration component used to help protect compatible pressure washer systems from debris entering through the water supply. The filter traps dirt and particles before water reaches the pump, helping reduce the risk of internal contamination. The attached weight helps keep the filter positioned within the water... https://www.wholetoolbox.com/karcher-5-731-652-0-pressure-washer-filter-with-weight/5.731-652.0.html