3 pcs. cartridges for Blackline RO reverse osmosis system:
 
Cartridge 1:
Pre-filter with coconut-based activated carbon block
Replacement interval: 3-6 months
 
Cartridge 2:
RO membrane filter
Replacement interval: 12-24 months
 
Cartridge 3:
Granulated coconut-based activated carbon filter
Replacement interval: 6-12 months
 
The service life depends on local water conditions. The system will continuously inform you about the condition of your cartridges and notify you when they should be replaced.