This filter, also known as a water inlet screen, is designed for use with pressure washers and has a 1-inch diameter (including the surrounding rubber housing). The filter itself is made of mesh and is sold as an individual part that filters dirt and debris from entering your pressure washer. It is recommended that this part is routinely ...Read moreinspected to keep your equipment running smoothly and to prevent a damaged filter from allowing dirt into your equipment. This part sits in-between the hose from your home and the pressure washer itself and is a genuine OEM part that requires no tools to replace or install.