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Single Stage CO2 Regulator With Solenoid, Dual Gauges & Adjustable Output Pressure

4.9 [154 Reviews]
£89.99

System Customisation


 
 

Key Facts

  • Highest quality design and manufacture.
  • Adjustable output pressure 0-5 Bar / 0-75 PSI, enough to meet the needs of any aquarium (20L - 3000L).
  • 12v DC Solenoid magnetic valve allows for CO2 to be switch on/off at defined times. Mains transformer included.
  • High precision needle valve for ultimate dosing control.
  • Output can be adjusted to enable use with horizontal or vertical CO2 cylinder valves.
  • Dual pressure gauges display input pressure and output working pressure.
  • Industry standard nut, compatible with DIN 477 / BS 341 No. 8 / JIS m22-14 / W21.8-14 / .860" x 1/14 (covers UK, Europe and Asia).
  • Works with any CO2 diffuser.
 

Description

The Single stage regulator with adjustable pressure will reduce the high pressure of a CO2 cylinder to a lower and usable pressure for use in the aquarium. The ability to adjust the working/output pressure ensures the regulator will be able to meet the needs of any aquarium requirements; whether that is operating a single CO2 diffuser, or multiple diffusers, this regulator can be adjusted to deliver the pressure that's needed.

A high-precision needle valve is fitted as standard, which gives you easy and incredibly accurate control of CO2 dosing. As a result, the regulator is suitable for small/nano aquariums as the bubble rate (dose) can be reduced as low as 1 bubble / 10 seconds.

Because the needle valve can rotate, the regulator can be used with either horizontal or vertical cylinder valves. The stem/nut can also be removed and can then connect to nano cartridges, making the regulator suitable for nano aquariums, and much larger aquariums.

The integrated solenoid valve provides the ability to automatically shut off the CO2 at timed intervals, e.g. to sync with the aquarium lighting. This ensure CO2 is not being dosed when it's not needed, and will therefore extend the lifespan of your CO2 cylinder and save money. The 12v DC solenoid (mains transformer included) provides safe, low temperature, and guaranteed no noise operation.

Dual pressure gauges indicate the cylinder pressure and the output / working pressure.

Instructions

  • Tighten the regulator to your CO2 cylinder using a spanner or wrench. Do not use your hands to tighten, it will not create sufficient seal and be likely to leak.
  • Set the output pressure to minimum by turning the pressure adjuster knob fully anticlockwise.
  • Close the needle valve by turning fully clockwise.
  • Plug the solenoid into a mains socket and switch on.
  • Open the flow of gas from your CO2 cylinder.
  • The cylinder presure gauge will now indicate the pressure of the cylinder. Turn the pressure adjuster clockwise until it reads 40PSI, which is a good starting point for a single diffuser installation.
  • With the bubble counter attached, turn the needle valve anticlockwise to achieve the bubble rate desired. 1 bubble / second is suitable for a 150L aquarium - adjust your dosing in accordance to this, i.e. 2 bubble / second for 300L aquarium.
  • Click here to read the full regulator setup guide
 

Customer Reviews

Average Rating
4.9
  • M
    Michael R.
    5
    20th Apr 2025
    Great bit of kit. Easy to setup, the dual gauges are really useful, and the adjustable pressure is spot on. Great bit of kit. Easy to setup, the dual gauges are really useful, and the adjustable pressure is spot on.
  • S
    Steve M.
    5
    16th Apr 2025
    Fits perfectly on my tank, gauges are clear, and the solenoid switches smoothly. Pressure stays steady and adjusting output is straightforward. Works just as described. Fits perfectly on my tank, gauges are clear, and the solenoid switches smoothly. Pressure stays steady and adjusting output is straightforward. Works just as described.
  • M
    Manus O.
    5
    12th Apr 2025
    This CO2 regulator is well-built and does exactly what it should. The dual gauges are clear, and setting the output pressure is straightforward. The solenoid works perfectly. A solid piece of kit. This CO2 regulator is well-built and does exactly what it should. The dual gauges are clear, and setting the output pressure is straightforward. The solenoid works perfectly. A solid piece of kit.
  • M
    Maciej T.
    5
    8th Apr 2025
    This regulator is perfect for my aquarium. It was easy to set up, and the dual gauges are really helpful. The solenoid works great, and it keeps my CO2 levels stable. This regulator is perfect for my aquarium. It was easy to set up, and the dual gauges are really helpful. The solenoid works great, and it keeps my CO2 levels stable.
  • J
    James D.
    5
    30th Mar 2025
    Great bit of kit. Simple to get going, pressure is stable and the solenoid works as it should. Great bit of kit. Simple to get going, pressure is stable and the solenoid works as it should.
  • P
    Piotr R.
    5
    28th Mar 2025
    Solid build, no issues after a couple months of use Solid build, no issues after a couple months of use
  • D
    Dominik R.
    5
    24th Mar 2025
    So far it’s been reliable and consistent with no issues So far it’s been reliable and consistent with no issues
  • C
    Catherine H.
    5
    12th Mar 2025
    It's reliable and well-made product that's done the job without any issues. It's reliable and well-made product that's done the job without any issues.
  • G
    Geoff C.
    5
    3rd Mar 2025
    Does exactly what it’s meant to, and saves me a lot of time instead of the DIY system I had before Does exactly what it’s meant to, and saves me a lot of time instead of the DIY system I had before
  • D
    Donald P.
    5
    14th Feb 2025
    Excellent quality regulator and very good service Excellent quality regulator and very good service
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