FreshWater's alternative to the Franke 06 filter cartridge is fully compatible with the Franke FilterFlow Stainless Steel filter housing. 

FreshWater's version of the Franke 06 cartridge incorporates a section of advanced carbon block, combined with 'dealk' resin.  The Carbon Dealk cartridge is designed to remove chlorine and heavy metals.  In addition, it also reduces the residues associated with hard water - namely limescale kettles and scum on the surface of hot drinks.      

Your Carbon Dealk filter cartridge will need to be replaced at 3-6 monthly intervals depending upon the hardness of your water and the amount of water you use.