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DI210, Heavy-duty DI system for Aquarium and Reef [DI210]


DI210, Heavy-duty DI system for Aquarium and Reef

2-stage Heavy-duty DI unit for salt water Aquariums and reefs


Model: DI-210



  • The purpose of the DI unit is to further reduce the mineral content of water after RO system.  If you want to achieve very pure water, very low or 0 TDS reading for large amount of water, then this is the unit to get.
  • This can be used with any reverse osmosis system or RO+DI system, also used with all Watergeneral and KoolerMax systems


NOTE:  This DI unit is used in conjunction with an RO system or RO+DI system.

NOTE:  If connect directly to tap water, the DI resin will be used up very quickly.  (not recommended)



  • 2 lbs of DI resin.  It will treat about 3000-4000 gallons of RO water, but actual capacity depends on tap water TDS and RO water TDS.



  • Two 10 inch cartridge type DI filters with color changing Nuclear-grade DI resin.
  • Clear Filter Housing to observe color changing DI resin: when the color changes from green or light brown (when new) to dark brown and black (when exhausted), it is time to replace the resins.
  • Refillable filter cartridges:  you can open up the filter cartridge and refill the resin inside
  • Vertical placement:  DI filters stands upright can reduce the effects of channeling.  It is more efficient, and removes more minerals.
  • Includes a steel mounting bracket:  White powder-coated steel bracket is used for mounting of the unit on the wall or cabinet


What's included in the unit:

  • DI unit with clear filter housings and 2 DI filter cartridge already assembled
  • Filter housing wrench
  • 10 feet of tubing, ¼ inch
  • ¼ inch compression fittings on the inlet and outlet


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