As filtered water consumption is increasing, as a general rule we recommend replacing your MAXTRA+ filter every 4 weeks or 150 litres of water usage. However each Australian household is unique, this timing can vary per household depending on your family size and water drinking rates of each person. 

Therefore we've developed the calculator below to help you work out exactly when you need to change your MAXTRA+ or MAXTRA+ Limescale filter to maintain optimum filtration results. 

Don’t worry if you can’t keep track of when to replace your MAXTRA+ filter, BRITA has specifically designed a filter reminder indicator built into BRITA water jugs to remind you when it’s time to replace your filter as well.

Is it time to change your filter? Click here to stock up now. Curious about what chemicals does a MAXTRA+ filter reduce in your tap water? Click here to find out.

* Calculation based on an average glass size of 240ml