Replacement filter code: WFMSUPER20BB - This is a replacement filter cartridge to fit inside the filter in the 1st filter pod on the larger sized EcoPlus XL whole house system (filter cartridge height 50cm). The filter utilises a mix of ceramic type filter media to filters levels of chemicals / compounds including chlorine, to reduce the taste & odour of the water and improve overall water quality. This produces good tasting water for the whole home which you can drink from any tap. The WFMSUPER20BB filter will last for up to 1 year between filter changes, filter cartridge dimensions: 50cm x 11.4cm (20" x 4.5"). Please note the standard size EcoPlus (not XL version) uses a smaller cartridge, 25cm height which is reference:WFMSUPER10BB AquaHouse branded product. AquaHouse is a registered trademark of Water Filter Man Ltd.