Aerator

check out the home depot. They sell their rental units when they recieve new machines. I think they have classen models. Give it a try.

I bought two of the rental home depot units. They are both classen models, two years old around 40 hours on both of then. I paid just under 600.00 for each of them. Call it what you will, but a unit with 40 hours on it, for about 1/4 the price new, is pretty good. No problems with either machine