The Vactor HXX HydroExcavator is available in positive displacement and fan configurations, providing up to seven hours of continuous operation with the onboard water. Lower water flow results in less operator fatigue and a cleaner, more precise digging process. It comes with a 12-cubic-yard debris body fabricated from corrosion- and abrasion-resistant steel; a 1,200-gallon high-density polyethylene water tank that retains heated water temperature longer, reducing the likelihood of freezing during operation in harsh winter weather; and a top-mounted, 7-foot hydraulic extendable boom that provides 320-degree rotation. Heated pump cabinets and a built-in boiler allow it to work on frozen ground in sub-zero temperatures. 800/627-3171; www.vactor.com.