It is a genuine item that is supplied by the original equipment manufacturer for use with Campbell Hausfeld general purpose filters. The purpose of these components is to remove the unwanted dirt particles and condensed water to extend tool life. Filtration element captures particles as small as 5 microns. It provides an identical replace...Read morement for a missing or a worn part that was included with a new unit. This high-quality brass filter element is sold in a pack of two. Make sure to refer to the owners manual of your model for the correct application of these parts.