ARO PRO 2” metallic pumps achieve flow rates of up to 172 GPM (651 LPM) and offer a wide array of material and porting configurations. These pumps are often used for transfer, filling, recirculation and batching in Ceramic, Paint, Oil & Gas, Mining, Construction, Chemical and Petrochemical markets.


  • Efficiency – Motor design delivers optimum air efficiency
  • Reliability – ARO’s patented ‘Unbalanced’ air valve ensures no-stall operation
  • Versatility – Combine with 67174-20 screened inlet kit and use for dewatering
  • Environmentally Sound – Bolted construction for leak-free fluid handling
  • Serviceability – Easy access to ball checks and fluid caps for maintenance and repairs


  • 66312 Air Line Connection Kit: contains Piggyback Filter / Regulator, pipe nipple & 5’ section of hose
  • 67174-20 Screen Inlet Kits
  • 66975 Cycle Counter Kit
  • 637434 Air Section Service Kit
  • 637432-XX Fluid Section Service Kit

Pump Casing Materials

  • Aluminum
  • Stainless Steel
  • Cast Iron

Diaphragm Materials

  • PTFE w/ Santoprene backer
  • Hytrel
  • Santoprene
  • Nitrile