3″ Pro Series Metallic

Please, when you pass to checkout in the field of additional information write the type of material of the pump and diaphragm.

237 GPM (897 LPM)


  • Industry leading flow rates with a maximum delivery of 237 GPM (897 LPM)
  • Ideal answer to big volume applications 
  • Efficiency – Motor design delivers optimum air efficiency
  • Reliability – ARO’s patented ‘Unbalanced’ air valve ensures no-stall operation
  • Versatility – Appropriate for various applications such as  material transfer to portable dewatering
  • Environmentally Sound – Bolted construction for leak-free fluid handling
  • Serviceability – Easy access to ball checks and fluid caps for maintenance and repairs
SKU: 3_M_ARO_PUMP Categories: ,


Pump Casing Materials

  • Aluminum
  • Stainless Steel
  • Cast Iron

Diaphragm Materials

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


  • 66312 Air Line Connection Kit: contains Piggyback Filter / Regulator, pipe nipple & 5’ section of hose
  • 66975 Cycle Counter Kit
  • 637434 Air Section Service Kit
  • 637433-XX Fluid Section Service Kit