Chihiros CO2 Pressure Regulator PRO

Chihiros CO2 Pressure Regulator PRO

  • Controlled CO2 flow rate
  • Working and cylinder pressure manometer
  • Including 12V DC solenoid valve
  • For W21,8 threads
  • Including Bluetooth Controller
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The Chihiros CO2 Pressure Reducer PRO is a state-of-the-art device for precise control of the CO2 supply in aquariums. With its dual pressure gauge, it is possible to accurately check the pressure in the CO2 cylinder and the working pressure, which increases safety and reliability. An integrated high-precision safety valve provides additional safety by automatically releasing pressure above 100 PSI (6,89 bar).

The 12V DC solenoid valve on the pressure reducer ensures that the CO2 supply is safely interrupted, while the included Bluetooth controller reliably controls the start and stop times.

This device has a W21,8 standard thread and is equipped with a bubble counter that contains a built-in non-return valve. This prevents water from flowing back into the system and thus ensures trouble-free operation. A special feature is the option of app control and automatic timer switching using the Chihiros CO2 Regulator Solenoid Controller. It is operated via the "My Chihiros" app, which requires a Bluetooth connection to enable efficient and user-friendly control of the CO2 system.

With the separately available CO2 pressure reducer PRO extension, the PRO system can be supplemented with an additional supply option.


  • Dual pressure gauge for precise monitoring of the pressure in the CO2 cylinder and the working pressure
  • Integrated safety valve that automatically releases pressure above 100 PSI (6,89 bar)
  • Energy-efficient 12V DC solenoid valve for safe night shut-off
  • Compatible with W21,8 standard thread for wide applicability
  • Bubble counter with built-in non-return valve to prevent water backflow
  • Bluetooth controller for digital monitoring in scope of delivery


Chihiros CO2 Pressure Reducer PRO
Height 17 mm
Height bubble counter 85 mm
Width 75 mm
Length over all 175 mm



Chihiros Aquatic Studio is a technology company specialised in aquatic products. Since the foundation in 2014 the name Chihiros has produced some significant waves. Through good quality and an excellent price-performance ratio, a sustainable and growing influence on the market of aquaristic technology could be achieved. With innovative ideas, such as lamps that can be controlled via Bluetooth and WIFI, chic designs and, above all, a lot of technology at attractive prices, Chihiros has been able to secure a firm place in many living rooms and hearts of aquarium enthusiasts. In addition to LED lamps, the product range also includes accessories for aquarium filters, tools and glassware.

General information

Item no.
EAN 4043366500506
Weight 1,04 kg
Shipping weight 1,10 kg

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