The versatile HiCFM 850VX 800-gallon-capacity vacuum excavator from Ring-O-Matic can be used for quickly and safely keyholing or potholing buried utilities, cleaning out storm drains, catch basins, drilling fluids and valve boxes, slot trenching, or assisting in environmental cleanup. The trailer-mounted version offers portability from a standard 3/4-ton truck, weighing less than 1,200 pounds fully loaded, and optimally balanced tongue weight. The tandem-axle, pintle-hitch-mount trailer is built on a heavy-duty, 8-inch C-channel frame for longevity. Vacuum power is supplied by a 15-inch, 1,000 cfm Gardner Denver blower and powered by a water-cooled 50 hp industrial CAT Interim Tier 4 diesel engine. 800/544-2518; www.ring-o-matic.com.