Great service; thanks! Unfortunately, I guess I ordered the wrong part. By the looks of the photo online, I thought I had ordered a larger diameter graphite packing washer than what I received. I wanted the left-hand thread packing washer for the Prier faucet, which do look like what your website shows. The ones I received may be for the right-hand thread faucet(?) because they are smaller in diameter... and they have an "RH" stamped on them. (See comparison of what was sent to the image of the washer on your site.) Oh well, my mistake no doubt. But thanks for the good service!