Do any of your filters use any materials derived from corn, gluten, or soy? I have a history of reacting to water filtered by carbon filters that have materials derived from corn. November 23, 2019 07:30 Updated Follow None of the AquaTru filters are made of material that contain corn, gluten or soy. Related articles Is the carbon filter made from coconuts shells? I am allergic to coconuts. Does AquaTru come with filters or do we have to purchase them separately? How often do I need to change my filters? Does Aquatru Connect use the same filters as the original AquaTru? How do I descale my AquaTru or AquaTru Connect?