DNA Filter SetThe DNA Filter Set provides all the filter cartridges required to keep your DNA Water Purifier producing purified Water for between 12 18 months, depending on usage. It Includes 6 x Cartridges. 2 x DNA PP Cotton Filter Cartridge, 2 x DNA Pre Processing Activated Carbon Filter Cartridge, 1 x DNA Reverse Osmosis Filter Cartridge, 1 x DNA Post Processing Activated Carbon Filter Cartridge. Features Model 13299 Colour White Product Weight 0. 6 kg Product