locating underground utilities in the hardest soils without harming them. The SYSTEM 4000 safely operates faster and easier in soil that is tough, wet, sun baked, or compact, including ground frost.This powerful air-vacuum excavation system gives you the power to pothole like never before with high-velocity, supersonic air that explodes the soil from within for easy vacuuming and quick backfilling. The 4000 is:50% more powerful than its predecessor, the SYSTEM 3, yet simple for a two-man crew to operate.Turbo-diesel powered, yet quiet.State-of-the-art, yet easy to maintain.Versatile, uses air yet has water available for clean-up jobs.Safe, yet powerful $149,500.00 877-279-7373 x219