Mueller climatrol model 110-100, I need a blower but can't find a number for it. When I search for the manual on Google nothing comes up for this model. Can you help?

That must be one old unit since they were bought out by Fedders in 1964 unless someone revived the name. If the unit is that old it just has a simple motor which can be removed and matched up at a motor shop in your area or Grainger etc.