AODD-80A Air Operated Double Diaphragm Pump Pump Inlet/Outlet:80mm(3 inch); Air inlet size: 3/4"; Max flow: 1041L/min; Max head: 84M (8.4bar); Pump material: Ductile iron(SG iron), Stainless steel(SS304 SS316 SS316L); View More 3 inch diaphragm pumpAODD-80A Diaphragm Pumpaodd-80a pump