We ION WATER MACHINERIES pioneer in the field of water treatment plants and filters manufacturing in kolkata since 1967, ........................ situated at 10, Kiron Sankar Roy Rd., Gr. Fl. Kolkata - 700001. We are specialist in manufacturing on iron removal plants & filters for Industrial and Domestic division. ************** We using our own make patented oxidizing catalytic filtering media for reducing of iron and turbidity in raw water. Catalytic filtering media is much active and costlier than ordinary filtering media, These acts as a catalyst and at the same time is a filtering media................. These are assorted granules of 16-40 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.