Aluminum Inline CO2 Diffuser

Select Diffuser Size (fits inside diameter /outside diameter tubing size) *

Current stock: 0

Our aluminum CO2 diffuser is designed to be installed outside of the aquarium, inline within the outflow tubing of your canister filter, either below the aquarium or mounted to the aquarium glass. This diffuser is capable of 100% dissolution of CO2 in the aquarium water, creating a fine mist readily absorbed by plants.

features aluminum body that easily comes apart for thorough cleaning

features a replaceable ceramic tube so that you can ensure lifetime use and performance

mount outside of aquarium inline within outflow tubing of canister filter

select to fit tubing size 12/16mm ID/OD or 16/22mm ID/OD (inside diameter /outside diameter)

Creates a super fine mist of CO2 bubbles, bubble size is less than 0.1mm diameter

Important Instructions...

This professional quality diffuser requires a minimum of 30 psi working pressure.

Must be used with Green Leaf Aquariums CO2 pressure rated tubing only, not for use with silicone or other brand tubing. Tubing must be acid resistant and rated for high working pressure. Compatible with all tubing sold by GLA.

Handle diffuser carefully, do not touch ceramic. Install and remove tubing carefully.

Do not use with bubble counter fluid or other bubble counter oils. Fill bubble counter with water only to avoid contamination of diffuser.

Monitor and clean diffuser regularly.

Shipping, Warranty & Returns

Diffusers are not warranted against improper use or handling. Please read all important notices listed above prior to purchase and prior to use.


7 Reviews

Nicole Lowy 5th Nov 2019

In-line diffuser

So happy with it!

J. Alcanter 31st Aug 2019


I am new to planted aquariums and have no clue what I’m doing. I ended up having problems after installing cause I flipped my check valve on CO2 hose the wrong way. I had no clue what I did or how to fix. Customer service (Orlando) helped guide me through and trouble shoot. He was really cool about it, with an almost immediate response to my emails. I’m beyond impressed with customer service. As for the inline diffuser, was super easy, you just cut outlet hose, put in diffuser (there’s no up or down) then connected CO2 hose (make sure check valve is going right way) and your done. Creates fine bubbles. Very happy with purchase.

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