When you need the best...
You need the ACE. For greater resistance to high-vacuum pressures, it's designed with cylindrical components, including round dump tubes and tank to ensure complete material discharge. There are no common walls between chambers so components last longer.
For higher fuel efficiency
The ACE has more filter bags (68), creating a better air-to-cloth ratio and a minimal overall pressure drop. The variable-volume hydraulic pump is efficient, too, providing a quick response, generating less heat and requiring less horsepower to operate.