The Chihiros CO2 Pressure Regulator PRO Limited Edition is a high-precision CO2 regulator for planted aquariums, featuring dual pressure gauges (cylinder and working pressure), an integrated 12V DC solenoid valve, fine needle valve, and a built-in bubble counter with check valve. A built-in safety valve automatically releases pressure above 100 PSI, providing an additional layer of protection for pressurized CO2 systems.

Optional Bluetooth and app control is available via a separately purchased Chihiros controller, enabling timer-based automation and remote regulation through the My Chihiros App.

Key features

• Dual pressure gauges: cylinder pressure + working pressure
• Built-in safety valve — auto-releases above 100 PSI
• 12V DC solenoid valve with low power consumption
• Integrated bubble counter with check valve
• Fine needle valve for precise CO2 flow adjustment
• Optional Bluetooth/app control via separate Chihiros controller
• Limited Edition finish

Technical specifications

• Solenoid: 12V DC
• Safety valve: Auto-release above 100 PSI
• Bluetooth: Via optional Chihiros controller (sold separately)