I had a bunch of those laying around when I left installing. I ended up giving a few of them to installers still there and sold some on ebay. They are gold to an installer when you have a cheap RSP that won't buy them and makes up excuses to say that they were being used too much on mounts they shouldn't have been.
I loved to use them on direct mounts to avoid putting new holes in someone's roof but they weren't approved for that but they worked just fine.
Yeah just looked they are all over ebay.. search for dish network pole mount adapter.