Replacement cartridges for your STREAM 3 and STREAM 4 water filtration system.
When water flow out from your STREAM water filter starts to run slower, it is time to replace the cartridges.
For STREAM 4 Systems:
Red + Yellow + Purple + Blue
For STREAM 3 Systems:
Red + Yellow + Purple
Purchase all replacement filters as a pack to receive a discount, or you can purchase each one individually.