This set includes the four filter stages that require 6-monthly replacement*. The set comprises:
1st Stage - 5 Micron Sediment Filter 10”
2nd Stage - Granular Activated Carbon Filter 10"
3rd Stage - 1 Micron Sediment Filter 10”
5th Stage - Post Carbon Filter
Note: The TFC Membrane is not included as it only requires replacement every 12 months
* Cartridge longevity and performance depend on water usage and level of contamination.