This is an authentic item which is supplied by the original manufacturer for use with Ridgid drain cleaning machines. It is one of the special spacers that helps to provide a tight seal between connected pieces, over time it may wear out or simply get lost eventually requiring a replacement. Keep in mind this high-quality item is made of ...Read moredurable metal and is sold individually. Make sure to refer to the appropriate diagrams of your model for the correct location and application of this hardware.