eco3 is more cost effective than most existing water filtration systems. With conventional water filtration systems in that, when the regular service is carried out, the whole cartridge has to be replaced which includes both the plastic cartridge and the media contained within that cartridge. This increases the cost of conventional replacements as well as impacting adversely on the environment through disposal to landfill. Using the eco3 system, only the cartridge needs replacing, which means that the filter housing can be used time and time again thus reducing overall lifetime costs. This provides a significant commercial benefit in these challenging economic times as users try to find ways to enhance the range of products or services offered whilst reducing costs. In summary, eco3 is able to provide more benefits at lower costs than comparable products.