This is an O.E.M. part. respective Porter Cable models. OEM Part 18001. in United States. Amazon.com This pad a high-quality, long-lived design. Designed to scene 7336 and 97366 Random Orbit Sander, this pad economic, 6-hole dust collection. Installation is and simple with the inbuilt mounting thread. This 6-inch diameter pad 6-inch hook and loops discs. This item is individually.