Great value WRAS approved EcoAqua direct replacement for Lincat Filterflow FX water filter cartridge. Offering the same great tasting water, made to the exact specification and quality as the original as it's made with NSF approved components. This carbon block filter fits directly into the boiler and improves water taste by removing impurities such as chlorine as well as reducing limescale build up on the equipment due to the added scale inhibitor. The typical lifespan of the water filter cartridge is around 5, 600 litres - that's around 4-6 months of use, although heavy use many require more regular changing. Compatible with Lincat Water Systems: EB3FX, EB4FX, EB6FX, EB6TFX, EB3FX/PB, EB3FX/TT