How long do the cartridges last

The life of all water filter cartridges is dictated by the amount of water filtered and not by time. Despite what you read elsewhere.

Neither we nor anyone else can tell you how long a filter cartridge will last in terms of time. We do not know how many people there are in your household nor do we know how much filtered water you and yours will use for drinking and food preparation.

We express the life span in litres. A rule of thumb is to allow at least 3,000 litres per adult and 1,500 per chiild per year.

Our page "Cartridge Life Explained" goes into more detail.