5 Stage RO/DI system

[kiwis]

I have a 5 stage system as the titles suggests.

I don't have a manual but am sure I need to replace the cartridges. What would each stage be? what do i need to get to replace each one?

 

[K7BMG]

Where did you buy the unit?
Typically the manuals are on the sellers website.
That said.

Stage one: GE ROsaves.Z 1 Micron Sediment Filter
Stage two: BRS Universal 1 Micron Carbon Block
Stage three: BRS Universal 1 Micron Carbon Block
Last stage: DI Resin

 

[Saltyreef]

Either as said above, or dual DI resins.

Also youll want to calculate your RO rejection rate to see if you need a new membrane or not.
Depending on the age of your system.