Geo's Reef Calcium Reactor (CR618)

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About This Product


  • All cell cast acrylic construction
  • thick clear lid to view proper O-ring seal
  • Key hole slot for lid removal
  • Full access to the reaction chamber
  • Micro ball valve effluent control
  • Eheim 1048 pump, bolts to base plate
  • pH probe port in lid
  • pH probe adapter included
  • Auto fill bubble counter
  • 9 x 10 foot print, 22" overall height


The CR618 will hold 12 pounds of large grain media and is suitable for reef aquariums up to 300 gallons