Graco 4D350 Endura-Flo 4:1 Pneumatic Air Operated Diaphragm Pump 350cc Tri-Clamp. Surplus, Acquired From Spare Parts Storeroom. The item “Graco 4D350 Endura-Flo 41 Pneumatic Air Operated Diaphragm Pump 350cc Tri-Clamp” is in sale since Monday, July 5, 2021. This item is in the category “Business & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Pumps & Pump Accessories\Vacuum Pumps\Diaphragm Pumps”. The seller is “arrowindustrialsales” and is located in Millersburg, Indiana. This item can be shipped worldwide.