£138.99
System Customisation
Key Facts
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Regulator featuring adjustable output pressure, precision needle valve, dual pressure gauges and 12v DC solenoid (mains transformer included) for timed control of CO2 dosing.
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Optional 0.95L Disposable CO2 cylinder (lasts 5-6 months for 150L aquarium).
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Precision regulator bubble counter.
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High performance CO2 diffuser.
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Easy CO2 adapter (optional).
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Drop checker kit for correct CO2 dosing.
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3m High grade polyurethane tubing.
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4 x Suction clips for tidy tubing.
Description
The Pro Aquarium CO2 System with Adjustable Output Pressure combines high performance and quality at an affordable price, with each component serving an essential function for a highly effective CO2 system.
The CO2 Regulator features adjustable output pressure to ensure it can meet the needs of any aquarium, whether big or small. The high-quality 12v DC solenoid (mains transformer included) enables dosing to be controlled so that CO2 can be dosed at times and intervals that you choose. The 12v DC solenoid provides safe, low temperature, and guaranteed no noise operation. The precision needle valve and bubble counter provide the ability to easily achieve your required CO2 dose.
To ensure the best levels of CO2 diffusion are achieved an 'atomizer diffuser' is provided. Because the bubbles that they produces are incredibly small ('atom-sized'). Because the bubble are so small, they are diffused into the aquarium water more effectively than larger bubbles produced by other diffusers, and therefore provide incredibly high levels of diffusion. This means very little CO2 is wasted, which saves money in the long-term.
A drop checker is included with the CO2 system, which is used to easily set the correct CO2 dose for your aquarium. Without a drop checker you would essentially just be guessing at how much CO2 to dose; a drop checker changes colour to reflect whether you are dosing too much, too little or the right amount.
You can easily automate the dosing of CO2 by plugging the solenoid into a regular timer plug and set it in coordination with your aquarium lights, so you only dose CO2 when the plants are photosynthesising. Using the supplied drop checker you can ensure you are dosing the correct amount of CO2 and that the CO2 levels remain constant to provide the most stable growing conditions for the plants, while at the same time also help to reduce algae growth.
The (optional) 'Easy CO2 Adapter' gives you the ability to source the required CO2 cylinder from a variety of convenient locations, and even high-street shops. Ensuring the required gas for your CO2 system is easily and readily available. Simply choose which adapter you would like; SodaStream, disposable, or Paintball cylinders.
The CO2 system also comes with all other items required, including 3m of Polyurethane tubing, suction clips and bubble counter.
The CO2 Regulator features adjustable output pressure to ensure it can meet the needs of any aquarium, whether big or small. The high-quality 12v DC solenoid (mains transformer included) enables dosing to be controlled so that CO2 can be dosed at times and intervals that you choose. The 12v DC solenoid provides safe, low temperature, and guaranteed no noise operation. The precision needle valve and bubble counter provide the ability to easily achieve your required CO2 dose.
To ensure the best levels of CO2 diffusion are achieved an 'atomizer diffuser' is provided. Because the bubbles that they produces are incredibly small ('atom-sized'). Because the bubble are so small, they are diffused into the aquarium water more effectively than larger bubbles produced by other diffusers, and therefore provide incredibly high levels of diffusion. This means very little CO2 is wasted, which saves money in the long-term.
A drop checker is included with the CO2 system, which is used to easily set the correct CO2 dose for your aquarium. Without a drop checker you would essentially just be guessing at how much CO2 to dose; a drop checker changes colour to reflect whether you are dosing too much, too little or the right amount.
You can easily automate the dosing of CO2 by plugging the solenoid into a regular timer plug and set it in coordination with your aquarium lights, so you only dose CO2 when the plants are photosynthesising. Using the supplied drop checker you can ensure you are dosing the correct amount of CO2 and that the CO2 levels remain constant to provide the most stable growing conditions for the plants, while at the same time also help to reduce algae growth.
The (optional) 'Easy CO2 Adapter' gives you the ability to source the required CO2 cylinder from a variety of convenient locations, and even high-street shops. Ensuring the required gas for your CO2 system is easily and readily available. Simply choose which adapter you would like; SodaStream, disposable, or Paintball cylinders.
The CO2 system also comes with all other items required, including 3m of Polyurethane tubing, suction clips and bubble counter.
Customer Reviews
Average Rating
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Alan S.
6th Oct 2026Great quality kit and great that it comes with everything needed for setup including the gas cylinder. Great quality kit and great that it comes with everything needed for setup including the gas cylinder. -
Jon A.
5th Oct 2026Arrived quickly and easy to set up. Excellent customer support too, they answered all my questions Arrived quickly and easy to set up. Excellent customer support too, they answered all my questions -
Martin R.
30th Sep 2026I received excellent service from start to finish - questions answered promptly by customer service, order dispatched the same day, received setup instructions by email so I could read before it arrived, delivered the following morning and had it setup and running in no time. Can't wait to see what difference it makes with my tank! Very happy to recommend to anyone looking for a CO2 system. I received excellent service from start to finish - questions answered promptly by customer service, order dispatched the same day, received setup instructions by email so I could read before it arrived, delivered the following morning and had it setup and running in no time. Can't wait to see what difference it makes with my tank! Very happy to recommend to anyone looking for a CO2 system. -
Aaron M.
27th Sep 2026I was a bit nervous setting this up as Id never done anything with compressed gas before but the instructions were very clear and is was much easier to setup than I thoguht. Only been running a few days so a bit early to see any results yet, but so far I'm very happy with it and the service I received. I was a bit nervous setting this up as Id never done anything with compressed gas before but the instructions were very clear and is was much easier to setup than I thoguht. Only been running a few days so a bit early to see any results yet, but so far I'm very happy with it and the service I received. -
Colin L.
25th Sep 2026Excellent CO2 kit and great service from CO2 SUpermarket! Excellent CO2 kit and great service from CO2 SUpermarket! -
Jonathan B.
24th Sep 2026Great CO2 system, easy to set up and everything feels good quality and my plants are already looking healthier and growing better. Great CO2 system, easy to set up and everything feels good quality and my plants are already looking healthier and growing better. -
Howard B.
23rd Sep 2026Great quality components, and everything needed for setup - very happy with the system and would use co2 supermarket again Great quality components, and everything needed for setup - very happy with the system and would use co2 supermarket again -
Chris P.
20th Sep 2026Excellent customer service with pre-sales questions I had and I'm very pleased with it. Lost a star as I didn't actually receive it next day as I had hoped Excellent customer service with pre-sales questions I had and I'm very pleased with it. Lost a star as I didn't actually receive it next day as I had hoped
Reply from CO2 Supermarket
Thank you for your review Chris. I see the reason you didn't receive it next way was because you submitted your order at 17:13 which is after our cut-off time of 15:00 for same-day dispatch -
Mordechai P.
16th Sep 2026Fast delivery, works great and helpful service too. Fast delivery, works great and helpful service too. -
Karrena E.
15th Sep 2026Great CO2 system with quality parts. 5 stars! Great CO2 system with quality parts. 5 stars!
