£27.99
£9.99
Replacement Ceramic Tube for 12/16mm Blizzard Inline AtomizerKey Facts
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Suitable for 12mm/16mm tubing (12mm internal / 16mm external). Click here for tubing size advice
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For aquariums up to 500L.
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Creates a mist of very fine bubbles.
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Excellent diffusion rates due to high surface area of small bubbles.
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Bubbles are in the flow of water as it enters the aquarium, so remain in suspension in the water for longer.
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Diffuser is located outside the aquarium which allows for easy maintenance.
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No equipment in the aquarium itself.
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Choose the size for your filter tubing.
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Requires 2 bar / 30 PSI pressure to function (provided by all CO2 Supermarket regulators).
Description
The Inline Atomizer CO2 Diffuser is arguably the most well known product used for CO2 diffusion, and is a firm favourite with planted aquarium specialists around the world. Designed for use with various filter size tubing, this CO2 diffuser sits inline between your filter and the filter outlet, ensuring that the CO2 has as much contact time with the water as possible.
The atomizer diffuser dissolves CO2 very efficiently, and provides a stream of very tiny bubbles which exit directly from the filter outlet. Because the bubbles are in the flow of current from the filter this ensure the bubbles remain in suspension for longer and further improves the level of diffusion.
Furthermore, because the diffuser is deployed outside the aquarium, maintenance is a very easy.
The atomizer diffuser dissolves CO2 very efficiently, and provides a stream of very tiny bubbles which exit directly from the filter outlet. Because the bubbles are in the flow of current from the filter this ensure the bubbles remain in suspension for longer and further improves the level of diffusion.
Furthermore, because the diffuser is deployed outside the aquarium, maintenance is a very easy.
Instructions
- Inline atomizers are to be installed on the return / outflow tubing from a filter as the water is reintroduced to the aquarium.
- Cut or replace your filter tubing with PVC tubing.
- Push tubing on to each end of the diffuser.
- Screw the retaining nuts back over the tubing to hold in place.
- Unscrew the small nut on the CO2 inlet.
- Feed CO2 tubing through the nut and onto the CO2 inlet.
- Tighten the nut onto the CO2 inlet to secure the tubing.
- Turn CO2 on, allow pressure to build within the diffser.
- Adjust dosing / bubble rate accordingly.
Customer Reviews
Average Rating
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Mark G.
12th Feb 2026Works really well at making tiny CO2 bubbles that spread out nicely, and it keeps everything looking clean in my tank since it's not actually in the water. Easy to swap out the ceramic part too. Works really well at making tiny CO2 bubbles that spread out nicely, and it keeps everything looking clean in my tank since it's not actually in the water. Easy to swap out the ceramic part too. -
Paul H.
16th Jan 2026My CO2 levels are way more stable now, and the tiny bubbles really spread out nicely. Plus, it's all hidden away in my cabinet, so the tank looks so much cleaner My CO2 levels are way more stable now, and the tiny bubbles really spread out nicely. Plus, it's all hidden away in my cabinet, so the tank looks so much cleaner -
William D.
13th Jan 2026Tiny bubbles! CO2 diffuses efficiently, and it's easy to clean. No complaints. Tiny bubbles! CO2 diffuses efficiently, and it's easy to clean. No complaints. -
Jez D.
11th Aug 2025This diffuser is fantastic. The tiny bubbles create a great mist throughout the tank, and it's easy to install. This diffuser is fantastic. The tiny bubbles create a great mist throughout the tank, and it's easy to install. -
Vincent P.
26th Jun 2025Very happy with it overall. Very happy with it overall. -
Ken V.
5th May 2025I'm very happy with this diffuser I'm very happy with this diffuser -
Tim M.
9th Feb 2025The super fine mist of tiny bubbles it creates is insane and I love that it’s tucked away in the cupboard with my other equipment, keeping my tank uncluttered, and it's a breeze to clean and maintain. The fact that you can easily replace the ceramic tube is a huge plus. The super fine mist of tiny bubbles it creates is insane and I love that it’s tucked away in the cupboard with my other equipment, keeping my tank uncluttered, and it's a breeze to clean and maintain. The fact that you can easily replace the ceramic tube is a huge plus. -
Curtis R.
15th Nov 2024The super tiny bubbles it produces are insanely efficient at diffusing CO2, and seeing that mist spread throughout the tank is just amazing. Plus, it's hidden away in the cabinet, so there's no clutter in sight, just like I like it. The super tiny bubbles it produces are insanely efficient at diffusing CO2, and seeing that mist spread throughout the tank is just amazing. Plus, it's hidden away in the cabinet, so there's no clutter in sight, just like I like it. -
Craig S.
12th Apr 2024This is a huge upgrade from the intank diffuser.. I can get a nice mist of super fine bubbles all through the tank. My filter is also recycling the co2 rich water back into the tank This is a huge upgrade from the intank diffuser.. I can get a nice mist of super fine bubbles all through the tank. My filter is also recycling the co2 rich water back into the tank -
Maggie B.
16th Jan 2024This diffuser is the best I've used. The bubbles it makes are very small and it's so easy to clean. This diffuser is the best I've used. The bubbles it makes are very small and it's so easy to clean.
