2Sav,
 I have an UWR. I know I have one cause I built my pump....
I think UWR are red in color. That may be the liner in blue you are seeing. The best thing to do to get a definite answer is email Duane at Hi-Tech Performance the picture you have there.
 Duane is great. I had him on the phone several times when setting up my pump even on a Saturday.
I was sent the wrong wear ring twice. I have an "old" style Dominator impeller that went into a Berk JG bowl. He made good for it and overnited them.

Oh and if you do have an UWR, DO NOT DO NOT run it out of water.

  T.J.

Ill go check it now, what am i looking for in clearance?  I know this pump has not been ran since it was rebuilt ....Its supposed to have a stuffer plate in it too   Who knows...
2sav

Well if i did it right I got a very tight .015

2sav

No dry starts for you then  I thought that thing was very tight

Now i really wish i would have listened to him when he was explaining everything to me, i know he said it was set up for racing but i didnt hear much after that

2sav