ARO Ingersoll-Rand Polypropylene Air Operated Double Diaphragm Pump. Max Working Pressure: 100 PSI, 6.9 BAR. The item "ARO Ingersoll-Rand 666053-388 Polypropylene Air Operated Double Diaphragm Pump" is in sale since Saturday, June 1, 2019. This item is in the category "Business, Office & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Pumps & Pump Accessories\Vacuum Pumps\Diaphragm Pumps". The seller is "saradean3" and is located in Burnsville, Minnesota.This item can be shipped worldwide.