ARO PNEUMATIC AIR DIAPHRAGM PUMP. USED, but in good working condition. Need to combine orders from different listings.If your item is received in a different condition than stated DOA, not working properly etc... 80LBS AN 1 QTY 11/3/21. The item "ARO PNEUMATIC AIR DIAPHRAGM PUMP 666152-2EBC 6661522EBC 1-1/2NPT 120PSI USED" is in sale since Wednesday, November 3, 2021. This item is in the category "Business & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Pumps & Pump Accessories\Vacuum Pumps\Diaphragm Pumps". The seller is "southbendindustrial" and is located in Clover, South Carolina. This item can be shipped worldwide.