PNP Activated Alumina are uniform spheres of active be supports produced by PNP’s unique manufacturing process. They are available in the following diameter sizes: ½, 3/8, ¼, 1/8, 3/16 inch diameters. All sizes have superb crush strength. Their primary use is for top and bottom tower bed support in adsorption unit. The product can also be used in catalytic application in which activated alumina is beneficial to chemical process.