The 5314 Top Mount blower package from National Vacuum Equipment includes a cyclonic grit ridder, secondary/scrubber, pre-filter to keep the blower free of foreign material, an air ballast system to keep it running cool while providing 27 inches Hg continuous operation, a water-cooled 6-inch remote four-way valve to prevent freeze-ups in frigid temperatures, and an air ballast and exhaust silencer with stainless construction on the internals. The silencers are double-walled with internal packing to ensure quiet operation. This package has adequate airflow, 1,600 cfm and a 6-inch boom. 800/253-5500; www.natvac.com.