CO2Art Inline CO2 Aquarium Atomizer Diffuser System
CO2Art Inline CO2 Aquarium Atomizer Diffuser System

CO2Art Inline CO2 Aquarium Atomizer Diffuser System


Regular price $45.99

Welcome the real star of the CO2Art diffusers collection- the NEW In-line CO2 Diffuser with a replaceable ceramic membrane!

The V2 version of our classic In-line CO2 Diffuser comes with an improved ceramic membrane made with Fine Mist Technology providing you with the highest dissolution rates!                                                        

The CO2Art In-line Diffuser optimises the injection for the best CO2 absorption and less waste. CO2 bubbles pass through the porous ceramic membrane and are diffused into streams of tiny bubbles. The increased saturation of the CO2 in the water column is highly beneficial for healthy and fast plant growth.

If you run an external filter, the In-line diffusion method is perfect. Thanks to being able to position the device outside the aquarium, there is more space for plants inside without additional equipment spoiling the view. The metal body of the diffuser makes the device crack-resistant and durable. The membrane included with the diffuser is replaceable with our replacement Ceramic Membrane (sold separately)                                                  

Depending on the hose dimension, you can choose from two sizes.

  • 12/16 ID/OD (inside diameter /outside diameter) ~ 13mm (tubing diameter)
  • 16/22 ID/OD (inside diameter /outside diameter) ~ 17mm (tubing diameter)                                                     

Before installation:

  • This professional quality diffuser requires a minimum of 30 psi working pressure.
  • Must be used with CO2 pressure rated tubing only, do not use with silicone tubing. Tubing must be acid resistant and rated for high working pressure.

Trust the most efficient and reliable diffuser on the globe and provide your plants with the best CO2 fertilising daily.



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’!


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:


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.
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 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 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.

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