The 550 HiCFM VacEx Hydroexcavator from Ring-O-Matic comes standard with a 50 hp CAT diesel engine and 1,000 cfm Gardner Denver positive displacement blower. It combines the safe cutting power of high-pressure water with a powerful vacuum suitable for a variety of applications, including potholing for utility location, sewer jetting to clear sewer lines, sump and catch basin cleaning, HDD job site support and mud management, construction site cleanup and environmental cleanup. The Cyclo-Jet 2-in-1 Pothole Excavator attachment can dig a 3-foot hole in 30 seconds. 800/544-2518; www.ring-o-matic.com.