The HX-12/27 hydroexcavator from Ramvac by Sewer Equipment has a 12-yard debris tank, a temperature-controlled environmental chamber and a directional discharge system to off-load debris back into the excavation site when finished. It has a long-range wireless remote, NEMA 4 electrical system, a 400,000 Btu water boiler, a three-stage filtration system and standard 5,400 cfm blower with 27 inches Hg. It is available with a RamAir air excavation system. 800/323-1604; www.ram-vac.com.