It's great to be able to refresh and restore your old or heavily used Sanke Tap by putting in a brand new body washer. This washer will sometimes get left behind on a keg, if tapped for long periods of time. It can also get worn out and cracked, or maybe you just don't know where it's been, and you want to start fresh. All great reasons for throwing this little washer onto your American sanke tap D1505.