Geo CR818 Calcium Reactor

Usually Ships in 2 - 3 Weeks After Submission of Order

The CR818 will hold 24 pounds of large grain media and is well suited for large SPS reef displays and commercial holding systems from 400-600 gallons.

Note: These reactors are built to order by Geo Reef. It can take up to 4-5 weeks before your order will ship. These ship direct from Geos Reef to your door.


  • 8″ diameter reaction chamber
  • All cell cast acrylic construction
  • ½” thick lid, 3/8″ thick flange and base
  • Silicone o-ring
  • Key hole slot for lid removal
  • Full access to the reaction chamber (small diameter union tops do not provide this, making maintenance a chore)
  • Precision Needle Valve
  •  Sicce Syncra 3.0 bolts to base plate
  • pH probe port in lid
  • pH probe adapter included
  • Auto fill bubble counter
  • 13 x 13 foot print, 24″ overall height
  • Comes with tubing harness shown in picture
  • Now comes with push to connect fittings
  • Now comes with new lid with detachable screen
More Information
Manufacturer Geo Reef
Write Your Own Review
You're reviewing:Geo CR818 Calcium Reactor
Your Rating
Recently Viewed
No recently views items
Clear All
© 2020 Aquarium Specialty - Contact Us: 803-788-4445. 535-C Clemson Rd - Columbia, SC 29229