The Prime Aire Plus “PAH” line of priming-assisted centrifugal pumps from Gorman-Rupp Company are available in sizes from 3 through 16 inches, heads to 575 feet, and flows to 15,000 gpm. Models are available for clear-liquid high-pressure applications and can be coupled to flex Tier III- or IT4-compliant engines or premium efficiency electric motors. They employ the same venturi/compressor priming system as the Prime Aire line. The compressor is integral on the engine version and a shelf-mount design on the electric units. Benefits include increased head and flow and enhanced maintenance features including externally adjustable running clearances, a ductile iron body and impeller, two lip seals and atmospheric vent to ensure bearing protection, and oil-lubricated versus grease-lubricated bearings. 419/755-1011; www.grpumps.com.