CO2 Supermarket Reviews 

500
TrustScore 4.5 out of 5

4.7

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Rated 5 out of 5 stars

The best company by far I've ever dealt with, the customer support was excellent and helped me pinpoint my issues and the delivery service to Glasgow was only one day from start to finish. The product... See more

Rated 5 out of 5 stars

After experiencing a catastrophic CO2 dump with a 10yr old single stage regulator, I was advised to replace the regulator, solenoid and needle valve as one item. I bought the dual stage regulator set... See more

Rated 5 out of 5 stars

The filling adapter for carbonated drinks machines works well. The tech help was great. I bought the wrong type of C02 which C02suppermarket identified as the problem straight away. You will need to... See more

Rated 5 out of 5 stars

Everything is working well with my co2 system and my aquarium plants are growing quickly. I had some queries during set up which Martin responded to quickly and sorted the problem. Great service.

Company details

  1. Animals & Pets

Information provided by various external sources

Leading suppliers of aquarium CO2 systems and equipment. We help people create beautiful planted tanks. Find us at http://www.co2supermarket.co.uk/


Contact info

4.7

Excellent

TrustScore 4.5 out of 5

500 reviews

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No recent history of asking for reviews

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4.7

All reviews

(500)

73 reviews in the last 12 months

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Rated 5 out of 5 stars

The best company by far I've ever dealt…

The best company by far I've ever dealt with, the customer support was excellent and helped me pinpoint my issues and the delivery service to Glasgow was only one day from start to finish. The products are excellent and in the years I've dealt with them I've never had a product faulty

23 August 2026
Unprompted review
Rated 5 out of 5 stars

Replacement dual stage regulator

After experiencing a catastrophic CO2 dump with a 10yr old single stage regulator, I was advised to replace the regulator, solenoid and needle valve as one item. I bought the dual stage regulator set. It is a really solid piece of kit. There was as initial problem with the solenoid, but the company advised a simple remedy - a drop of oil to the steel shaft of the solenoid with clear instructions on how to do it. Now working perfectly, the needle valve is easier to control than the last set-up. Incidentally since I installed this tank 5 years ago, I have only bought plants twice, the growth is so lush I have to regularly thin it out.

24 July 2026
Unprompted review
Rated 5 out of 5 stars

The filling adapter for carbonated…

The filling adapter for carbonated drinks machines works well. The tech help was great. I bought the wrong type of C02 which C02suppermarket identified as the problem straight away. You will need to buy Liquid C02 by the way and Adams Gas is also a great supplier and have dealers around the country.

5 August 2026
Unprompted review
Rated 5 out of 5 stars

Brilliant customer service

Brilliant customer service. I had a few questions before purchasing and Martin was more than helpful in assisting me and pointing me in the right direction of what I needed.

4 August 2026
Unprompted review
Rated 5 out of 5 stars

All together a great experience

All together a great experience. Being new to the c02 world,ordered the Ultimate-Pro Dual Stage CO2 System. Was not disappointed. Great quality product,alot of information sent on setup via email on dispatched, which I really liked. Made life alot easier. Only bad point wish I knew spanner was included,spent a hour looking for my adjustable later finding a spanner supplied, another real nice touch. Can't praise enough.

7 July 2026
Unprompted review
Rated 5 out of 5 stars

Excellent equipment.

Clear website with very good explanations on each item. Great email communication with links to videos on how to set up the system.
Great value for money, very good equipment.
Delivery was prompt and everything was very well packaged.

1 July 2026
Unprompted review
Rated 5 out of 5 stars

One small O ring gasket saved me buying a new Sodastream machine

I was getting a little ticked with my sodastream machine leaking CO2 every time I pushed the button. I worked out that I needed a new o ring gasket thingummy (can you tell I'm not technical) and found CO2 supermarket that let me buy just one for a very small fee. The gasket ring was with me two days later. I have now got a fully working Sodastream machine again. Yyyyaaayyyy. Thanks guys, thumbs up for the service and cost.

1 July 2026
Unprompted review
Rated 5 out of 5 stars

Fast delivery

Fast delivery, everything worked as it should with no problems, the instructions that they send on email explained everything you needed to know. Very happy with set-up, plants love to 👍

19 June 2026
Unprompted review
CO2 Supermarket logo

Reply from CO2 Supermarket

Thank you very much, Mark, we're pleased you're happy with everything

Rated 5 out of 5 stars

Great backup

Very helpful in sorting my issues with equipment

12 June 2026
Unprompted review
CO2 Supermarket logo

Reply from CO2 Supermarket

Thank you for your review, John, and for your friendly cooperation in dealing with the initial problem you had, it's much appreciated.

Rated 5 out of 5 stars

A very useful resource indeed

I had some excellent help from CO2 supermarket last year when I was looking to connect my soda stream directly to a large CO2 cylinder and with their advice found what I needed successfully as a result. I had some more queries on this topic recently and turned to their customer service team for help once again. And I have been delighted to have had all my queries answered with patience and courtesy. Most grateful for the help. A very useful resource indeed.

8 June 2026
Unprompted review
CO2 Supermarket logo

Reply from CO2 Supermarket

Thank you, John, we're really pleased to hear you're happy with our products and service 👍

Rated 5 out of 5 stars

Co2 bundle was delivered on time and in…

Co2 bundle was delivered on time and in great packaging. I was a bit unfortunate to get a defective diffuser but this was purely manufacturing and nothing to do with CO2 Supermarket. Having said that, I contacted customer support and they had a replacement unit sent out straight away. Brilliant service. Many thanks.

25 May 2026
Unprompted review
CO2 Supermarket logo

Reply from CO2 Supermarket

Thank you for your review, Adam. We're sorry for the initial problem with the diffuser, but we appreciate for your friendly cooperation and understanding, it's much appreciated.

Rated 5 out of 5 stars

Well stocked site, good variety of products

CO2 super market, fantastic selection of products. Products I have ordered have arrived in good time and well packaged and of good quality.

Make sure you read and study the photos of the products, one I did order was much bigger than I anticipated.

If I had to nip pick. Adding photos with some sort of scale would help for us new people to the hobby trying to work out if the product is suitable.

Other than that, will definitely continue to order through this site. Highly recommended.

19 May 2026
Unprompted review
CO2 Supermarket logo

Reply from CO2 Supermarket

Thank you, Damien, we're really pleased you're happy with our products, and thank you also for your feedback/suggestion.

Rated 5 out of 5 stars

I’ve previously bought from Co2…

I’ve previously bought from Co2 Supermarket and when I returned with some questions for another purchase the support was fast, clear, and answered my questions perfectly.

Great service right through to the delivery, and of course the product quality.

19 May 2026
Unprompted review
CO2 Supermarket logo

Reply from CO2 Supermarket

Thank you for your review, Stu, it's much appreciated.

Rated 5 out of 5 stars

Highly recommended!!!

Website is easy to navigate and the info available makes it easy to choose what you need. Delivery was very quick with just the right amount of updates via email. This is the second or third time I ordered and can highly recommend CO2 Supermarket. Great job guys!!!

14 April 2026
Unprompted review
CO2 Supermarket logo

Reply from CO2 Supermarket

Thank you so much for your continued custom, Eldred, it's great to hear you're happy with our products and service 👍

Rated 5 out of 5 stars

Customer service has been brilliant

I had some issues with my new regulator, but customer service has been top notch. They sent me a replacement part which has solved my issue. Very helpful and knowledgeable, and they reply usually well within 24hrs. Would buy from them again based on product quality & their customer service! Thank you for your help.

16 April 2026
Unprompted review
CO2 Supermarket logo

Reply from CO2 Supermarket

Thank you for your review, James, and for your kind cooperation while we resolved the issue you were having, it's much appreciated.

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