CO2 Regulators

Is aquascaping your passion? Wondering how to keep your planted tank beautiful, healthy and happy with lush plants? Do you want to rely on proven products distinguished by the highest quality and attractive price? 

Get to know our products and let's create something amazing together with our highest-rated dual-stage CO2 regulators.

Every detail has been designed with aquarium safety and fine Precision in mind. Dual-stage construction minimises the increase in output pressure as pressure drops in the gas cylinder and will prevent an end-tank dump no matter what size of CO2 cylinder you will use.

Its intuitiveness and ease of configuration are confirmed by the opinions of our satisfied customers and the best aquascapers in the world! In a few simple steps, your aquarium could be thriving from a trusted and reliable CO2 system.

Quick view
PRO-SE Series - Aquarium CO2 Dual Stage Regulator with Integrated Solenoid
$149.99
Quick view
New Pro-Elite Series V2 CO2 Regulator
$269.99
Quick view
Manifold Block for PRO-Elite Series V2 Regulator
$49.99
Quick view
Manifold Block for PRO-Elite Series Regulator
$49.99
PRO-SE Series - Aquarium CO2 Dual Stage Regulator with Integrated Solenoid
PRO-SE Series - Aquarium CO2 Dual Stage Regulator with Integrated Solenoid
PRO-SE Series - Aquarium CO2 Dual Stage Regulator with Integrated Solenoid
PRO-SE Series - Aquarium CO2 Dual Stage Regulator with Integrated Solenoid
PRO-SE Series - Aquarium CO2 Dual Stage Regulator with Integrated Solenoid
PRO-SE Series - Aquarium CO2 Dual Stage Regulator with Integrated Solenoid
PRO-SE Series - Aquarium CO2 Dual Stage Regulator with Integrated Solenoid
PRO-SE Series - Aquarium CO2 Dual Stage Regulator with Integrated Solenoid

Real Reels from Real Customers

PRO-SE Series - Aquarium CO2 Dual Stage Regulator with Integrated Solenoid

CA-PRO-SE-CGA

$149.99

The Pro-SE Series Dual Stage CO2 Regulator is an extremely durable and reliable device allowing you to control the CO2 injection in the most comfortable way. Look at the New Generation of our most popular CO2 regulator and trust the most reliable equipment. 

The Pro-SE model comes with an integrated Solenoid Valve and a universal power adapter with voltage 100V-200V that can be connected to a timer making the system fully automatic. 

The Dual-stage design minimises an increase in output pressure as pressure drops in the co2 cylinder and will prevent end-tank-dump keeping your aquarium safe and CO2 levels constant. The regulator is equipped with two gauges showing the tank volume and the flow pressure/working pressure. 

This CO2 regulator comes with a bubble counter and an extremely precise needle valve and an in-built check valve preventing the backflow of water and damaging the regulator. The working pressure is adjustable up to +/- 40PSI (3 BAR) which makes it an excellent product for both marine and freshwater tanks. 

The stem thread is made according to North America/CGA320 standard. This CO2 regulator is compatible with all CO2Art tubes and accessories. Pro-SE CO2 regulator provides you with a range of valuable features: 

  • Safe 12V DC Integrated Solenoid Valve 
  • Power adapter with universal voltage 100V-240V
  • New quality design and completely new construction.
  • Innovative design provides extreme accuracy and safety.
  • Integrated Solenoid Valve.
    • Adjustable working pressure up to +/- 40PSI (3 BAR) which makes an excellent product for both Tropical and Marine Aquariums.
    • Needle valve with bubble counter included.
    • Dual gauge pressure indicators (tank volume and flow pressure / working pressure)
    • Dual stage construction 
    • The thread is made according to North America CGA320 standard.

    Product Manual

    Pro-Elite
    Series

    Pro-SE
    Series
    Warranty 10 Years 5 Years
    Construction Dual Stage Dual Stage
    Integrated 12VDC Solenoid Valve ✓ ✓
    Maximum Working Pressure 80PSI / 5.5Bar 40PSI / 2.7Bar
    Pressure Stabilisation ~ 1PSI ~ 5PSI
    Bubble Counter with integrated check valve ✓ ✓
    Inline Atomizer Compatible ✓ ✓
    In-Tank Bazooka Atomizers Compatible ✓ ✓
    Standard Ceramic Diffuser Compatible ✓ ✓
    Low-pressure Reactor Compatible ✓ ✓
    End Of Tank Dump (EOTD) Prevention ✓ ✓
    Adjustable Working Pressure ✓ ✓
    CGA320 Connection Option ✓ ✓
    Stackable Outlets ✓ X
    Multi-Diffuser compatibility ✓ X
    CO2Art delivers products with outstanding quality. And great products come with great service.
    That is why we can offer up to ’10 Year Warranty’!

    WARRANTY PRODUCTS

    The following product receives a 10-year warranty:
    The following product receives a 5-year warranty:

    All other products receive the standard 2-year manufacturer’s warranty 

    *Please note that the warranty that CO2Art offers is non-transferrable

    In addition to our industry-leading warranties, all CO2Art customers receive lifetime:

    TERMS AND CONDITIONS

    Scope of Warranty
    This warranty covers any defects in materials and workmanship under normal home use.
    Period of Coverage
    This warranty runs for a minimum of two years from the date of purchase. Please save your receipt.
    Limitations
    Failures due to abuse or misuse are not covered by this warranty. Surface coating problems caused by excessive humidity, in-use scratches or abrasions, and direct exposures to the elements are also not covered.
    Repair or replacement is the only option available under this warranty. CO2Art is not responsible for damages of any kind, including incidental and consequential damages.
    Correction of Details
    If your product cannot be repaired, we will replace your product free of charge.
    When You Need Service
    Please contact our support centre to obtain an RMA number and return instructions.
    How Country and State Laws Relates to the Warranty
    This warranty gives you specific legal rights. You may also have other rights that vary from country to country and from state to state.

    If you would like to return a product, start the process by emailing us at support@co2art.us This allows us to see if there is something we can do before returning the product such as a feature you didn’t know about or send you a return label. We don’t require an RMA number but do ask you to contact us to initiate the return.

    Products bought from http://www.co2art.us can be returned within 30 days of the original purchase date provided they are unused, undamaged and in the original product packaging. If a product does not meet these requirements we reserve the right to deny the return if we feel that it is warranted.

    Who pays for shipping? In the event an item is damaged during transit etc, CO2Art will provide you a shipping label. If you are returning an item for another reason, it is your responsibility to get the item back to us safely. If it is a high-priced item we recommend a tracking number.

    Items that go on sale after you purchase them. We will honour a sale price up to 7 days from the day you purchased your item, this is the day on which the order was placed.

    New Pro-Elite Series V2 CO2 Regulator
    New Pro-Elite Series V2 CO2 Regulator
    New Pro-Elite Series V2 CO2 Regulator
    New Pro-Elite Series V2 CO2 Regulator

    Real Reels from Real Customers

    New Pro-Elite Series V2 CO2 Regulator

    CA-PRO-ELITE-CGA

    $269.99

    Pro-Elite Series, the Most Advanced Aquarium Dual Stage CO2 Regulator is the New Generation of our best-rated dual-stage regulator. This model has been appreciated by professionals all over the world. CO2Art is honoured to present you with the best aquarium CO2 Regulator ever. 

    The Dual-stage design minimises an increase in output pressure as pressure drops in co2 cylinder and will prevent end-tank-dump keeping your aquarium safe and CO2 levels constant. The regulator is equipped with two gauges showing the tank volume and the flow pressure/working pressure. 

    The most precise injection is possible thanks to a high precision needle valve with an integrated bubble counter allowing to adjust the pressure accurately. The customised manifold block is extendible, which means that you can run multiple diffusers with only one CO2 regulator. The pressure can be adjusted on each manifold separately allowing to run different CO2 levels in different tanks individually. 

    The stem thread is made according to North America/CGA320 standard. This CO2 regulator is compatible with all CO2Art tubes and accessories. Pro-Elite CO2 Regulator provides you with a range of valuable features: 

     

    • Safe 12V DC Integrated Solenoid Valve 
    • Power adapter with universal voltage 100V-240V
    • Adjustable working pressure up to 5 bar
    • Stainless Steel Dual gauge pressure indicators (tank volume and flow pressure / working pressure)
    • High precision integrated needle valve
    • Bubble counter with built-in check valve
    • Extendable manifold block
    • The thread is made according to North America CGA320 standard.
    Looking to inject CO2 into two, three or more aquariums?
    Your Aquarium is +200Gallon and requires more diffusers?
    Now you can add as many outlets as you like. With easy installation you can add or remove additional blocks anytime you want. 

     

     

     

    Visit our Support Portal for Installation Video Tutorial.


    Pro-Elite
    Series

    Pro-SE
    Series
    Warranty 10 Years 5 Years
    Construction Dual Stage Dual Stage
    Integrated 12VDC Solenoid Valve ✓ ✓
    Maximum Working Pressure 80PSI / 5.5Bar 40PSI / 2.7Bar
    Pressure Stabilisation ~ 1PSI ~ 5PSI
    Bubble Counter with integrated check valve ✓ ✓
    Inline Atomizer Compatible ✓ ✓
    In-Tank Bazooka Atomizers Compatible ✓ ✓
    Standard Ceramic Diffuser Compatible ✓ ✓
    Low-pressure Reactor Compatible ✓ ✓
    End Of Tank Dump (EOTD) Prevention ✓ ✓
    Adjustable Working Pressure ✓ ✓
    CGA320 Connection Option ✓ ✓
    Stackable Outlets ✓ X
    Multi-Diffuser compatibility ✓ X
    CO2Art delivers products with outstanding quality. And great products come with great service.
    That is why we can offer up to ’10 Year Warranty’!

    WARRANTY PRODUCTS

    The following product receives a 10-year warranty:
    The following product receives a 5-year warranty:

    All other products receive the standard 2-year manufacturer’s warranty 

    *Please note that the warranty that CO2Art offers is non-transferrable

    In addition to our industry-leading warranties, all CO2Art customers receive lifetime:

    TERMS AND CONDITIONS

    Scope of Warranty
    This warranty covers any defects in materials and workmanship under normal home use.
    Period of Coverage
    This warranty runs for a minimum of two years from the date of purchase. Please save your receipt.
    Limitations
    Failures due to abuse or misuse are not covered by this warranty. Surface coating problems caused by excessive humidity, in-use scratches or abrasions, and direct exposures to the elements are also not covered.
    Repair or replacement is the only option available under this warranty. CO2Art is not responsible for damages of any kind, including incidental and consequential damages.
    Correction of Details
    If your product cannot be repaired, we will replace your product free of charge.
    When You Need Service
    Please contact our support centre to obtain an RMA number and return instructions.
    How Country and State Laws Relates to the Warranty
    This warranty gives you specific legal rights. You may also have other rights that vary from country to country and from state to state.

    If you would like to return a product, start the process by emailing us at support@co2art.us This allows us to see if there is something we can do before returning the product such as a feature you didn’t know about or send you a return label. We don’t require an RMA number but do ask you to contact us to initiate the return.

    Products bought from http://www.co2art.us can be returned within 30 days of the original purchase date provided they are unused, undamaged and in the original product packaging. If a product does not meet these requirements we reserve the right to deny the return if we feel that it is warranted.

    Who pays for shipping? In the event an item is damaged during transit etc, CO2Art will provide you a shipping label. If you are returning an item for another reason, it is your responsibility to get the item back to us safely. If it is a high-priced item we recommend a tracking number.

    Items that go on sale after you purchase them. We will honour a sale price up to 7 days from the day you purchased your item, this is the day on which the order was placed.

    Manifold Block for PRO-Elite Series V2 Regulator

    Real Reels from Real Customers

    Manifold Block for PRO-Elite Series V2 Regulator

    CA-PRO-ELITE-MAN-V2

    $49.99

    Take your CO2 injection system to the next level with the CO2Art Pro Elite Series V2
    Manifold Block.

    Whether you're running multiple aquariums or diffusers, this modular add-on allows
    for independent CO2 control across every outlet—without compromising performance,
    safety, or precision.

    Built to match the performance and aesthetic of the Pro-Elite Series V2 Regulator, this
    manifold block connects directly to your existing setup. With included tools and a plug-
    and-play design, installation is quick and frustration-free—you’ll be up and running in
    minutes.

    Newly Redesigned for Next-Generation Performance:
    -Medical-Grade Metering Valve
    Experience ultra-precise CO2 flow control for each outlet—perfect for setups with varying
    injection needs.
    -Bubble Counter with Built-in Check Valve
    Monitor flow and protect your system with an integrated check valve to prevent water
    backflow into your regulator.
    -Tool-Included Quick Installation

    Comes with everything needed to securely mount and seal the block—no extra parts or
    purchases required.
    Easily add multiple manifold blocks (up to 5+) to a single Pro-Elite regulator, giving you
    the flexibility to grow with your setup.

    Pro-Elite
    Series

    Pro-SE
    Series
    Warranty 10 Years 5 Years
    Construction Dual Stage Dual Stage
    Integrated 12VDC Solenoid Valve ✓ ✓
    Maximum Working Pressure 80PSI / 5.5Bar 40PSI / 2.7Bar
    Pressure Stabilisation ~ 1PSI ~ 5PSI
    Bubble Counter with integrated check valve ✓ ✓
    Inline Atomizer Compatible ✓ ✓
    In-Tank Bazooka Atomizers Compatible ✓ ✓
    Standard Ceramic Diffuser Compatible ✓ ✓
    Low-pressure Reactor Compatible ✓ ✓
    End Of Tank Dump (EOTD) Prevention ✓ ✓
    Adjustable Working Pressure ✓ ✓
    CGA320 Connection Option ✓ ✓
    Stackable Outlets ✓ X
    Multi-Diffuser compatibility ✓ X
    CO2Art delivers products with outstanding quality. And great products come with great service.
    That is why we can offer up to ’10 Year Warranty’!

    WARRANTY PRODUCTS

    The following product receives a 10-year warranty:
    The following product receives a 5-year warranty:

    All other products receive the standard 2-year manufacturer’s warranty 

    *Please note that the warranty that CO2Art offers is non-transferrable

    In addition to our industry-leading warranties, all CO2Art customers receive lifetime:

    TERMS AND CONDITIONS

    Scope of Warranty
    This warranty covers any defects in materials and workmanship under normal home use.
    Period of Coverage
    This warranty runs for a minimum of two years from the date of purchase. Please save your receipt.
    Limitations
    Failures due to abuse or misuse are not covered by this warranty. Surface coating problems caused by excessive humidity, in-use scratches or abrasions, and direct exposures to the elements are also not covered.
    Repair or replacement is the only option available under this warranty. CO2Art is not responsible for damages of any kind, including incidental and consequential damages.
    Correction of Details
    If your product cannot be repaired, we will replace your product free of charge.
    When You Need Service
    Please contact our support centre to obtain an RMA number and return instructions.
    How Country and State Laws Relates to the Warranty
    This warranty gives you specific legal rights. You may also have other rights that vary from country to country and from state to state.

    If you would like to return a product, start the process by emailing us at support@co2art.us This allows us to see if there is something we can do before returning the product such as a feature you didn’t know about or send you a return label. We don’t require an RMA number but do ask you to contact us to initiate the return.

    Products bought from http://www.co2art.us can be returned within 30 days of the original purchase date provided they are unused, undamaged and in the original product packaging. If a product does not meet these requirements we reserve the right to deny the return if we feel that it is warranted.

    Who pays for shipping? In the event an item is damaged during transit etc, CO2Art will provide you a shipping label. If you are returning an item for another reason, it is your responsibility to get the item back to us safely. If it is a high-priced item we recommend a tracking number.

    Items that go on sale after you purchase them. We will honour a sale price up to 7 days from the day you purchased your item, this is the day on which the order was placed.

    Manifold Block for PRO-Elite Series Regulator
    Manifold Block for PRO-Elite Series Regulator
    Manifold Block for PRO-Elite Series Regulator
    Manifold Block for PRO-Elite Series Regulator

    Real Reels from Real Customers

    Manifold Block for PRO-Elite Series Regulator

    CA-PRO-ELITE-MAN

    $49.99

    If you need to inject CO2 into more than one diffuser or aquarium, the CO2Art Manifold Block comes with everything you need: 

    • Included Bubble counter with high precision needle valve

    • The bubble counter comes up with a built-in check valve permitting the water to flow in one direction only protecting the regulator from damage

    • Tools to install the block onto your already existing manifold

    • With this effortless installation, your additional diffuser will be up and running in no time. 

    The Manifold Blocks are fully tested in terms of resilience and leaks to provide the user with total reliability and quality. You can run 5+ Manifold Blocks at the same time, adjusting CO2 individually with the high precision needle valve. 

    If you want to run multiple diffusers with one CO2 regulator and cylinder, the CO2Art Manifold Block is your MUST HAVE! This clever device allows you to inject CO2 into more than one diffuser or aquarium independently by extending the already existing Manifold Block of Pro Elite CO2 Regulator. Before ordering, please check if you have the Hex-type screw block, if you have the old Philips-type screw type please leave a comment during checkout or contact our support team.

    Manifold Block Video Installation:



      Pro-Elite
      Series

      Pro-SE
      Series
      Warranty 10 Years 5 Years
      Construction Dual Stage Dual Stage
      Integrated 12VDC Solenoid Valve ✓ ✓
      Maximum Working Pressure 80PSI / 5.5Bar 40PSI / 2.7Bar
      Pressure Stabilisation ~ 1PSI ~ 5PSI
      Bubble Counter with integrated check valve ✓ ✓
      Inline Atomizer Compatible ✓ ✓
      In-Tank Bazooka Atomizers Compatible ✓ ✓
      Standard Ceramic Diffuser Compatible ✓ ✓
      Low-pressure Reactor Compatible ✓ ✓
      End Of Tank Dump (EOTD) Prevention ✓ ✓
      Adjustable Working Pressure ✓ ✓
      CGA320 Connection Option ✓ ✓
      Stackable Outlets ✓ X
      Multi-Diffuser compatibility ✓ X
      CO2Art delivers products with outstanding quality. And great products come with great service.
      That is why we can offer up to ’10 Year Warranty’!

      WARRANTY PRODUCTS

      The following product receives a 10-year warranty:
      The following product receives a 5-year warranty:

      All other products receive the standard 2-year manufacturer’s warranty 

      *Please note that the warranty that CO2Art offers is non-transferrable

      In addition to our industry-leading warranties, all CO2Art customers receive lifetime:

      TERMS AND CONDITIONS

      Scope of Warranty
      This warranty covers any defects in materials and workmanship under normal home use.
      Period of Coverage
      This warranty runs for a minimum of two years from the date of purchase. Please save your receipt.
      Limitations
      Failures due to abuse or misuse are not covered by this warranty. Surface coating problems caused by excessive humidity, in-use scratches or abrasions, and direct exposures to the elements are also not covered.
      Repair or replacement is the only option available under this warranty. CO2Art is not responsible for damages of any kind, including incidental and consequential damages.
      Correction of Details
      If your product cannot be repaired, we will replace your product free of charge.
      When You Need Service
      Please contact our support centre to obtain an RMA number and return instructions.
      How Country and State Laws Relates to the Warranty
      This warranty gives you specific legal rights. You may also have other rights that vary from country to country and from state to state.

      If you would like to return a product, start the process by emailing us at support@co2art.us This allows us to see if there is something we can do before returning the product such as a feature you didn’t know about or send you a return label. We don’t require an RMA number but do ask you to contact us to initiate the return.

      Products bought from http://www.co2art.us can be returned within 30 days of the original purchase date provided they are unused, undamaged and in the original product packaging. If a product does not meet these requirements we reserve the right to deny the return if we feel that it is warranted.

      Who pays for shipping? In the event an item is damaged during transit etc, CO2Art will provide you a shipping label. If you are returning an item for another reason, it is your responsibility to get the item back to us safely. If it is a high-priced item we recommend a tracking number.

      Items that go on sale after you purchase them. We will honour a sale price up to 7 days from the day you purchased your item, this is the day on which the order was placed.