Lyons Filter Company’s Activated Carbon Towers (GAC) include standard features and options to provide the best solutions for chlorine and organics control in water treatment for the soft drink, bottled water, brewing and food processing industries. Custom built carbon towers are all 316 stainless steel, Nitric Acid Passivated and Glass Bead Blasted to insure a uniform long lasting appearance. All face piping is 316 stainless steel and is also Passivated and Glass Bead Blasted.