FZONEDual Stage CO2 Regulator Aquarium Adjustable Output Pressure Pro Series with DC Solenoid and Integrated High Precision Needle Valve and Bubble Counter (dual stage)

Excellent regulator, precise control.Fighter fire extinguisher no problem.You can remove a bubble counter if you don't need two outlets.

It is as good a it looks. It could be used in a scientific environment. Not that I’m an expert but the materials it is made of seem refined and every control valve works accurately.

After using this CO2 regulator for a while i am now happy to leave a review, when it first arrived it worked as should, however quickly things changed, the regulator is very sensitive and does not stick to one setting and since swapping bottles over a few times now the dials are out and it tells me a full tank has around 100 in it, spend a bit more money get a decent regulator. I have lost fish from CO2 poisoning from this regulator as it cant regulate properly and has a mind of it own. Buyer beware.

No issues working fine no leaks

I have installed regulator today and the solenoid doesn't switch at all. I have ordered it in January 2023 but kept it as spare ,because my old one was still ok. I can't register for warranty ,because it 's expired. Not sure but warranty last for one year only. So I left with faulty item. Expecting advice from the seller.I have got response from seller with useful instruction how to fix solenoid. Till now is working fine from last Sunday.I hope it will be working fine for long time.Thanks to FZONE for quick and effective response

The initial unit failed to stop the flow of CO2 through the de-energised solenoid valve seat. Fzaqua were prompt to engage, but cleaning advice made not difference and unit replacement as I requested, was lost in translation, taking a week to eventually resolve a series of misunderstandings. Anyway, the replacement unit worked perfectly out of the box, and Fzaqua were prompt to initiate a refund.In summary, a good, value for money product, but I seem to have been unlucky to receive a faulty one initially, but customer services were very fair and attentive, when misunderstandings were resolved. I would recommend the Fzone dual stage regulator based on price, build quality and customer service.

The Fzone CO2 regulator is very easy to fit. The manual is tiny but has all the information you need to git the regulator. Very good product but would recommend for anyone fitting it to an aquarium that you fit a longer tube from Regulator to Pump hose. This is so you can twist the regulator off when changing Co2 bottles without the small thin pipe getting turned on itself which is pretty difficult due to the mini pipe being very think and not playable to turning over.

Fast delivery, nice item