Replacement filter cartridge for the AquaTaste Water Filtration System and K5 system. Expected filter life 1850 litre capacity or 12 months replacement (whichever is first) With a 5 granular activated carbon filter, the Kinetico AquaTaste replacement filter cartridge (previously known as Mac7000), will improve the taste, smell & colour of your drinking water. (Also suitable for use with K5, KRO+, KRO+ Deluxe GX, K2 drinking water systems). Genuine Kinetico item.