Spare carbon post-filter sachets which can be used instead of replacing the whole filter cup for the Waterwise 4000.
Carbon filtration enhances taste and purity by absorption, aeration and degasification. Replace every 2-months or after 60-80 gallons distilled, whichever comes first.
Each set contains 2 sachets and you use 2 sachets (1 set) at a time. Place the sachets into the filter cup after cleaning it very well.