our filter cartridge is Granular Activated Carbon and KDF material Granular Activated Carbon and KDF Water Filter Cartridge uses granular activated carbon and KDF as material,it can remove the particle and dust and remove chorine ,taste,odor.It can antisepticise and improve water quality.GAC+KDFHeight DiameterFiltration CapacityDurabilityPressure Drop +KDF inchesinchesµml/ ...