The HV-55 hydroexcavator from GapVax has a 12 1/2-cubic-yard debris body and water tanks from 400 to 1,400 gallons. It comes with a PD blower rated at 5,250 cfm and 28 inches Hg. Its filtration design includes five cyclones that prolong the life of the filter bags and eliminate the threat of material entering the vacuum pump. The tailgate is fully opening, field-adjustable and has four fail-safe, individually adjustable locks that provide a complete seal. Options include interior polymer coating, a cold-weather package, sludge pump, wireless remotes, washdown system and stainless steel body. 888/442-7829;

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