3.75kg Mixed Bed Colour Changing DI Resin
This premium mixed bed, colour changing resin contains both cation and anion resins combined in the one bag. It is a nuclear grade deionisation resin that will physically change colour as it becomes exhausted, alerting you to when it is time to replace it, even if you don’t have a TDS monitor on your system.
DI resin is a necessary part of any RO system used to produce water for your reef aquarium. It will ensure that your system produces reef safe water with total dissolved solids (TDS) reading of zero.
or 4 payments of $37.49 with 
540g Mixed Bed Colour Changing DI Resin
This premium mixed bed, colour changing resin contains both cation and anion resins combined in the one bag. It is a nuclear grade deionisation resin that will physically change colour as it becomes exhausted, alerting you to when it is time to replace it, even if you don’t have a TDS monitor on your system.
DI resin is a necessary part of any RO system used to produce water for your reef aquarium. It will ensure that your system produces reef safe water with total dissolved solids (TDS) reading of zero.
or 4 payments of $7.49 with
Clear Refillable DI Resin Cartridge 10” x 2.5”
These cartridges can be filled with your filtration media of choice in order to create a filter cartridge that is custom to your specific needs.
These cartridges come standard with built-in pre and post filters to keep the DI resin from being washed out of the filter cartridge.
or 4 payments of $8.74 with