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FZONE Pro Dual Stage CO2 Regulator (CGA320)

The proper planted-tank CO2 setup: a dual-stage CGA320 regulator with a DC solenoid, precision needle valve and expandable manifold, for stable, controllable CO2 off a refillable cylinder. The reliable long-term choice.

FZONE Pro Dual Stage CO2 Regulator (CGA320)
86/ 100 T&T score
Ranked 1st of 6 co2 systems
Owner rating4.3★ (665)
Best price today$108.79
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Score breakdown
CO2 Delivery92
Control & Stability90
Build Quality86
Owner Satisfaction84
Value76
What we like
  • +Dual-stage design holds pressure steady as the cylinder empties
  • +DC solenoid lets a timer switch CO2 on and off with the lights
  • +Precision needle valve for fine bubble control
  • +Expandable manifold to run more than one tank
Watch out for
  • −You supply a refillable CO2 cylinder separately
  • −More setup than a DIY generator or cartridge kit
Specifications
TypePressurized regulator
FittingCGA320
SolenoidYes (DC)
StagesDual
Needle ValvePrecision
Best ForSerious planted tanks