Can anyone identify this pump? There are no markings other than on the motor. The motor is an A.O. Smith QC1072.
Searching the interwebs it looks like it might be an Advantage MasterFlow.
I am thinking about converting to a two speed, and I would like recommendations as to whether I should get a whole new pump or swap out the motor. Do the impellers wear out? Is this setup considered low quality / low performance? It certainly looks different than the Hayward / Pentair models I have been seeing.