£27.99
£10.99
Replacement Ceramic Tube for 16/22mm Blizzard Inline AtomizerKey Facts
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Suitable for 16mm/22mm tubing (16mm internal / 22mm 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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Louise W.
16th Oct 2026Ai, great item, great price, fast delivery. Thanks. Ai, great item, great price, fast delivery. Thanks. -
Lisa L.
13th Oct 2026Fits the hose well and produces a really fine CO2 mist that disperses nicely through the tank. Plus, it’s also handy having the diffuser kept out of sight. Fits the hose well and produces a really fine CO2 mist that disperses nicely through the tank. Plus, it’s also handy having the diffuser kept out of sight. -
John T.
11th Oct 2026Best diffuser I've used! Very small bubbles and easy to clean and maintain. Very happy with it! Best diffuser I've used! Very small bubbles and easy to clean and maintain. Very happy with it! -
Kevin M.
8th Sep 2026Delivery was really fast Delivery was really fast -
Andrew C.
12th Aug 2026Great diffuser. The CO2 output looks super fine, and I’ve found dosing feels a bit more efficient than my older diffuser and reduced my bubble count. 5/5. Great diffuser. The CO2 output looks super fine, and I’ve found dosing feels a bit more efficient than my older diffuser and reduced my bubble count. 5/5. -
Ray L.
24th Jul 2026Fits my 16/22mm hose perfectly and produces a very fine mist. Fits my 16/22mm hose perfectly and produces a very fine mist. -
Aaron L.
30th Jun 2026Produces a very fine mist of tiny bubbles and very easy to take apart for maintenance Produces a very fine mist of tiny bubbles and very easy to take apart for maintenance -
David C.
13th Jun 2026This is the best inline diffuser Ive used. It works really well and it's very easy to clean and maintain. I’ve noticed my CO2 levels are much more consistent now and I've actually been able to dial down my dosing a bit because this is more efficient. This is the best inline diffuser Ive used. It works really well and it's very easy to clean and maintain. I’ve noticed my CO2 levels are much more consistent now and I've actually been able to dial down my dosing a bit because this is more efficient. -
Mark H.
12th Jun 2026The CO2 diffusion is solid and the bubbles are quite fine. I had an initial problem with a leak but it was just the the parts weren't tightened together enough. The CO2 diffusion is solid and the bubbles are quite fine. I had an initial problem with a leak but it was just the the parts weren't tightened together enough. -
Martin P.
19th May 2026This CO2 diffuser makes noticeably smaller bubbles than my old one, and the CO2 really spreads out in the tank, which was exactly what I was looking for. This CO2 diffuser makes noticeably smaller bubbles than my old one, and the CO2 really spreads out in the tank, which was exactly what I was looking for.
