The Vacmaster System 4000 air vacuum excavator. This is the world's most powerful Air-Vacuum Excavation System. It will allow you to pothole using air in the most difficult soils 95% of the time, while still having water available as a back-up. Its fast-acting interceptor canister allows you to keep dry and wet spoils separate. The SYSTEM 4000 represents the state-of-the-art in Air-Vacuum Excavation Systems for underground utility locating
