Optimise Your Hydroponic System with the Tesuco Hydroponic CO2 Regulator

Improve the growth and health of your plants using the Tesuco Hydroponic CO2 Regulator 1 Stage Rear Entry. This high-quality device is designed specifically for hydroponic dispensing systems using CO2, allowing you to accurately control and monitor CO2 levels for efficient and effective plant growth.

Features and Benefits

  • Compact design: The size of the CO2 regulator makes it easy to fit into tight spaces without sacrificing performance.
  • Safety relief valve: A safety valve on the downstream low-pressure side ensures protection against potential over-pressurisation.
  • High-pressure gauge: Easily monitor and observe CO2 levels with the built-in high-pressure gauge.
  • Flow gauge: The flow gauge shows the L/min rate of CO2 being released, allowing for more precise control over your hydroponic system.
  • 6-12mm hose barb outlet: The regulator features a versatile 6-12mm hose barb outlet for easy connection to your existing system.

How to Use

  1. Ensure your CO2 cylinder is in a secure and stable position.
  2. Attach the Tesuco Hydroponic CO2 Regulator to the CO2 cylinder by aligning the inlet fitting and sealing washer with the cylinder valve, then tightening with a wrench.
  3. Connect the 6-12mm hose barb outlet to the tubing that leads to your hydroponic system.
  4. Pair the CO2 regulator with a CO2 controller, such as the B1-PPM or CO2 Easi System.
  5. Open the valves on the CO2 cylinder and regulator to allow for CO2 dispensing when the controller senses a need for increased CO2 levels.
  6. Monitor and adjust your system as needed to ensure consistent and desired CO2 levels for optimal plant growth.

Aqua Gardening Suggests These are Best For

The Tesuco Hydroponic CO2 Regulator is best suited for hydroponic growers looking to enhance the growth and overall health of their plants by maintaining ideal CO2 levels in their systems. Whether you are a hobbyist or commercial grower, this CO2 regulator will help you achieve optimal growth conditions for your plants.

Notes from Aqua Gardening

  • Always handle CO2 cylinders with care, and store them in a stable and secure position.
  • Ensure that the CO2 regulator is properly connected and sealed to prevent leaks and ensure effective CO2 dispensing.
  • Regularly check and maintain your CO2 regulator and other components of your hydroponic system for optimal performance and safety.


What is the purpose of a Hydroponic CO2 Regulator?

The purpose of a hydroponic CO2 regulator is to safely control and release CO2 from a pressurised bottle into the grow area in order to maintain the optimal level of CO2 for plant growth when paired with a CO2 controller.

Can the Tesuco Hydroponic CO2 Regulator be used with any CO2 bottle?

The Tesuco Hydroponic CO2 Regulator is designed to work with standard pressurized CO2 bottles. Always make sure to follow the manufacturer's guidelines for safe and proper usage.

Is it easy to install the Tesuco Hydroponic CO2 Regulator?

Yes, the Tesuco Hydroponic CO2 Regulator is designed for easy installation. It comes with a 6 - 12 mm hose barb for connecting to your CO2 tubing. However, it is important to follow the manufacturer's instructions carefully and ensure that all valves are turned on in the correct order.

What is the function of the safety relief valve on the Tesuco Hydroponic CO2 Regulator?

The safety relief valve is installed on the downstream low-pressure side of the regulator. It serves as a safety measure to prevent damage or accidents caused by excess pressure in the regulator or the CO2 tubing.

How does the Tesuco Hydroponic CO2 Regulator work with a CO2 controller?

When paired with a CO2 controller, such as the B1-PPM or CO2 Easi System, the Tesuco Hydroponic CO2 Regulator uses its solenoid to open and release CO2 when the controller senses less than the required level of CO2 ppm in the air in the grow area. The solenoid will remain open and continue to release CO2 until the desired level is reached.

Can I control the flow rate of the CO2 using the Tesuco Hydroponic CO2 Regulator?

Yes, the Tesuco Hydroponic CO2 Regulator comes with a flow gauge in L/min, allowing you to monitor and adjust the flow rate of CO2 being released into your grow area according to your plants' needs.

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Product Manual

View PDF brochure for Tesuco Hydroponic CO2 Regulator 1 Stage Rear Entry


Hydroponic CO2 regulator with 1 stage rear entry, Compact design for Hydroponic dispensing systems, Safety relief valve for downstream low pressure side, High pressure gauge and flow gauge in L/min, Outlet with 6-12mm hose barb, Controls CO2 flow when paired with a CO2 controller, Solenoid opens to release CO2 based on controller signal

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