The Reef Octopus OCTO CR220 (CalReact) Calcium Reactor w/ VarioS 6 multiple speed pump meet the challenging task of maintaining alkalinity, calcium and trace elements on a demanding reef system. All models come with a PH probe holder (probe and PH controller sold separately) to monitor Ph levels in the main reactor chamber, and also come with built in bubble counters to monitor Co2 drip rates.

Features:

• For aquariums up to 500 gallons
• Variable speed, Apex ready VarioS 6 Pump
• Reverse flow and CO2 recirculating design
• Auto fill bubble counter
• Probe holder w/ plug (pH probe NOT included)
• Easy to remove lid
• Precision effluent control valve
• 1/4" quick connect fittings

Technical Specs:

• Body Size: 9in
• Footprint: 16.5in x 11in
• Total Height: 23in
• Media Capacity: 9.3L (2.5gal)
• Inlet Size: 1/4in
• Max Feed Rate: 150GPH