Patrone,
Three units were removed from Harrisburg( two hospitals), two mid sized and one smaller, the model numbers were changed when Medclean took over but they were called the MC 4 and MC 5 by Aduromed so it is hard to match the unit by model numbers, but I can tell you that the MC 4 was a 4 foot diameter unit and the MC 5 was a 5 Foot diameter unit, I would think the 4300 is a smaller of the two