This is a 100 mesh filter made from Plastic + Stainless Steel Mesh. It can filter very fine sediments, sand, and dirt more effectively to prevent clogging at the Nozzle Tip and Pressure Control Valve. Due to its very light in weight (only 1 g), it is very convenient and suitable for use at the front end of the Spray Lance and behind the Nozzle Tip or Pressure Control Valve. The durable stainless steel mesh is not easy to rust and damage. It can be installed in various types of Nozzles Adaptor and Accessories to meet users' requirements easily.