The VACMASTERS SYSTEM 6000 is the first air-vacuum excavation system with the power to trench as well as pothole. It is designed from the ground up to lower costs, reduce injuries and eliminate damage claims. The system uses supersonic air to penetrate, expand and explode the soil from within while keeping it dry for easy vacuuming and quick backfilling. In turn, this will also increase revenues and profitability by doing more work in less time. 800/466-7825; www.vacmasters.com.