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Product description

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.

Shipping and delivery

Free delivery on orders over $70; otherwise $14.99 in the US and $24.99 for the rest of the world. Orders placed before 2 PM CET are usually processed the same day — a regulator may need a little longer, because every one is assembled and tested before it ships. Delivery is fully tracked: 2–5 business days in the US. Customs or import duties outside the US are charged on arrival. Shipping & returns

Warranty and lifetime support

The Advance Professional and Professional dual-stage regulators carry a warranty of up to 10 years; every other CO2Art product carries the standard 2-year manufacturer's warranty. All customers receive lifetime free online technical support. Warranty terms

Satisfaction guarantee

If you are not satisfied with the quality of a product within 30 days of purchase, we send a full refund or a replacement at no charge. Mechanical defects found during the first year are repaired, with any parts needed, at no cost to you. The guarantee