We Ion Water Machineries pioneer in manufacturer and supplier of Iron Removal Plant in Kolkata since 1967. We are using are patented Catalytic filtering media in our make water treatment plants and filters to remove the iron in raw water.Catalytic filtering media is much more active and costlier than other ordinary filtering media. These acts as a catalyst and at the same time as a filtering media. These are assorted granules of 116-40 mesh size and of silica-manganese-iron etc. base. The media continues it's filtering ability for a longer time without losing oxidizing power.This we manufacture against our owned Indian Patent Developed in our Research Laboratories.