Collection: Diaphragm Pumps
Air-operated double-diaphragm (AODD) pumps for transferring chemicals, solvents, slurries, adhesives, and abrasive or shear-sensitive fluids — no electricity at the pump, self-priming, run-dry safe, and deadhead-able. We list models from multiple manufacturers by exact part number, each with its real wetted-material build (diaphragm, balls, seats, fluid caps), so you can match the pump to your fluid instead of guessing from a series sheet. Every page shows the spec table, the manufacturer datasheet, and a clear price. Based in Texas with US support and short lead times — find your model number, confirm the build, and order online.
Keeping a pump running? Browse pulsation dampeners and pump accessories to smooth flow and protect your system.
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ARO 6661AJ-344-C — 1" Polypropylene Diaphragm Pump, PTFE Diaphragm
Regular price $1,867.70 USDRegular price$1,966.00 USDSale price $1,867.70 USDSale -
ARO 6661AJ-322-C — 1" Polypropylene Diaphragm Pump, Nitrile Diaphragm
Regular price $1,497.20 USDRegular price$1,576.00 USDSale price $1,497.20 USDSale -
ARO 6661A3-3EB-C — 1" Polypropylene Diaphragm Pump, Santoprene Diaphragm
Regular price $1,600.75 USDRegular price$1,685.00 USDSale price $1,600.75 USDSale -
ARO 6661A3-34B-C — 1" Polypropylene Diaphragm Pump, Santoprene Diaphragm
Regular price $1,660.60 USDRegular price$1,748.00 USDSale price $1,660.60 USDSale -
ARO 6661A3-344-C — 1" Polypropylene Diaphragm Pump, PTFE Diaphragm
Regular price $1,969.35 USDRegular price$2,073.00 USDSale price $1,969.35 USDSale -
ARO 6661A3-311-C — 1" Polypropylene Diaphragm Pump, Neoprene Diaphragm
Regular price $1,600.75 USDRegular price$1,685.00 USDSale price $1,600.75 USDSale -
ARO 666162-2EB-C — 1-1/2" Cast Iron Diaphragm Pump, Santoprene Diaphragm
Regular price $2,680.90 USDRegular price$2,822.00 USDSale price $2,680.90 USDSale -
ARO 666162-24B-C — 1-1/2" Cast Iron Diaphragm Pump, Santoprene Diaphragm
Regular price $2,806.30 USDRegular price$2,954.00 USDSale price $2,806.30 USDSale -
ARO 666152-3EB-C — 1-1/2" Cast Iron Diaphragm Pump, Santoprene Diaphragm
Regular price $2,251.50 USDRegular price$2,370.00 USDSale price $2,251.50 USDSale -
ARO 666150-362-C — 1-1/2" Aluminum Diaphragm Pump, Nitrile Diaphragm
Regular price $1,865.80 USDRegular price$1,964.00 USDSale price $1,865.80 USDSale -
ARO 666150-344-C — 1-1/2" Aluminum Diaphragm Pump, PTFE Diaphragm
Regular price $2,408.25 USDRegular price$2,535.00 USDSale price $2,408.25 USDSale -
ARO 66612B-2A4-C — 1" Stainless Steel Diaphragm Pump, PTFE Diaphragm
Regular price $3,850.35 USDRegular price$4,053.00 USDSale price $3,850.35 USDSale -
ARO 66610A-322-C — 1" Aluminum Diaphragm Pump, Nitrile Diaphragm
Regular price $1,725.20 USDRegular price$1,816.00 USDSale price $1,725.20 USDSale -
ARO 666101-244-C — 1" Stainless Steel Diaphragm Pump, PTFE Diaphragm
Regular price $3,006.43 USDRegular price$3,545.00 USDSale price $3,006.43 USDSale -
ARO 666100-3EB-C — 1" Aluminum Diaphragm Pump, Santoprene Diaphragm
Regular price $1,645.40 USDRegular price$1,732.00 USDSale price $1,645.40 USDSale -
ARO 666100-361-C — 1" Aluminum Diaphragm Pump, Neoprene Diaphragm
Regular price $1,645.40 USDRegular price$1,732.00 USDSale price $1,645.40 USDSale