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
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See what reviewers are saying
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
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
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
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
United Kingdom
- info@co2supermarket.com
- www.co2supermarket.co.uk
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Responsive & helpful team. Good products.
The team is responsive and helpful.
All of my aquarium CO2 accessories I get from them. They have been reliable.
It's the customer support that made the difference for me. I appreciate that.

Reply from CO2 Supermarket
Items well packaged was a fantastic…
Items well packaged was a fantastic turnaround too, nice touch with the how to videos it made it very easy to put together. Great customer service will do business again 10/10

Reply from CO2 Supermarket
Absolutely brilliant customer service
Absolutely brilliant customer service. Really knowledgeable and genuinely helpful throughout. Took the time to give proper advice and went above and beyond what I expected. I’ll definitely be using them again and wouldn’t hesitate to recommend..

Reply from CO2 Supermarket
The Best Customer Service
Had a great experience with CO₂ Supermarket. Martin was really attentive from the start, he answered every question I had, explained everything clearly and helped me make the right choices for my setup. It made the whole process really straightforward.
Customer service was spot on throughout, and I’d definitely buy from them again. Highly recommended.

Reply from CO2 Supermarket
Being new to c02 I am bowled over by…
Being new to c02 I am bowled over by the support and quality of the system I have purchased..I will definitely be recommending c02 supermarket to everyone.

Reply from CO2 Supermarket
Best customer suport ive ever encounterd
The customer support is the best i have recived in my life. That is not a understatement. They have incredibly kind, knowledgeable staff, and respond swiftly. Offer a lot of guidance and are incredibly polite. I have been asking a absurd amount of questions and always recive helpfull responses and suggestions.

Reply from CO2 Supermarket
Great service
Great service, friendly and very efficient
Highly recommend to anyone, guided me through my first co2 set up perfectly

Reply from CO2 Supermarket
Excellent
Excellent service i ordered my co2 system from here and its a great bit of kit I ordered as heard lots of good feedback from fish groups and forumns

Reply from CO2 Supermarket
Ordered the Mixer Reactor CO2 Diffuser
Ordered the Mixer Reactor CO2 Diffuser. Biggest pile of rubbish ever. The Fans had to be cut down and excess plastic removed, the rubber O-ring was hard and needed replacing, the push fittings are horrific and need to be glued, there are no fittings for it and to mount it externally you need you make your own bracket. After all fo that it still produces bubbles!! Binned it! Wrote a review and they are not publishing it. Seems they only publish the 4 and 5 star ones. BE AWARE OF THIS WHEN ORDERING FROM THEM. The products are not as good as described!

Reply from CO2 Supermarket
Quality service
I don’t have a lot of space & I do have a sodastream subscription, so it was a no brainier when I came across this company. I email a question which was replied to on the same day! I know right!!!
The delivery was FAST. And everything fit. They had video links on how to fit each part for us newbies.
Quality materials & how service is supposed to be.

Reply from CO2 Supermarket
New co2 set up
Excellent website, made understanding my requirements very easy. The very helpful videos explaining how to use each item is a massive help.
My order arrived very quickly and very well packaged.
Overall, a brilliant company to buy from.

Reply from CO2 Supermarket
I’ve been running a nano co2 system…
I’ve been running a nano co2 system from CO2 Suppermarket for two years and it would be fair to say that the improvement in plant growth has been really impressive. Easy to use and reliable. Last week I had an unexpected leak and submitted an enquiry as to what the problem might be. I had a prompt personal response which reassured me that issue was not down to the equipment. Situation resolved.
Thank you CO2 supermarket

Reply from CO2 Supermarket
Great company
I was looking to purchase a CO2 kit
&I was glad I chose CO2 Supermarket ,
There kits are easy to set up & when I needed any advice they were quick to respond , they would even email me to check if I needed any more help

Reply from CO2 Supermarket
Wouldn't get a Co2 system anywhere else
Great customer service, fast response to enquiry. Package arrived fast and well packed, no complaints. Co2 is working well, and the instructions were very helpful , it made my experience as a beginner with a Co2 system straightforward.

Reply from CO2 Supermarket
Top service from co2 Supermarket
Top service from co2 Supermarket. Very high quality product and full instructions and videos on how to setup the system. I will be using them again in the future.

Reply from CO2 Supermarket
CO2 Regulator Set Up
This was my first experience of delving into CO2 and the level of support, guidance and all around help from Martin was nothing short of exceptional. Martin could not have done more to ensure my set up was correct - he followed up to ensure that I was having no further issues and offered his support whenever required. I can without doubt recommended CO2 Supermarket - just all around excellent service!

Reply from CO2 Supermarket
Superb customer service
Superb customer service. I was very surprised to receive a response to my enquiry given that I first raised it late on a Saturday. I received a further response on the following day too, and useful responses at that.
Advice/recommendation was bang on.
Order was shipped complete with some additional sealing washers that the supplier thought would be useful (and they didn't charge for).
Products are good and as expected.
Would I buy from them again? Yes, absolutely.

Reply from CO2 Supermarket
Great customer service
Great customer service, all my questions were answered fast and in full with clear advice.
Prompt delivery also

Reply from CO2 Supermarket
Really good experience
Really good experience, the only thing I'd improve would be the tracking. Mine went from in-progress to being delivered today without anything in-between. Otherwise I'm very pleased with what I ordered and had no issues, would purchase from again readily.

Reply from CO2 Supermarket
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