Pro Series CO2 Regulator


  • Safety & Precision: Built-in safety valve to release pressure above 100 PSI. Integrated needle valve allows precise CO2 output (as low as 1 bubble every 3 seconds).
  • 12V DC Solenoid: More stable, energy-efficient, and quieter than 120V AC, compatible with automatic timers.
  • Attention: Suitable for North American CO2 cylinders with CGA320 adapter. Installation tools included.
Sale price $135.99 Regular price $150.00
Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 4.

Dual Big gauge

1.6 inch big dual gauge easy to read your cylinder inner and working Pressure.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 2.

High precision structure

This regulator is designed for the aquarium. High precision fine-tuning easy for co2 to be 1 bubble in 3 seconds. Upgraded sealing material avoid any leak.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 3.

Updated split-type dc solenoid

Newest 12 DC split-type solenoid instead AC models, more safe and stable.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 4.

Dual Big gauge

1.6 inch big dual gauge easy to read your cylinder inner and working Pressure.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 2.

High precision structure

This regulator is designed for the aquarium. High precision fine-tuning easy for co2 to be 1 bubble in 3 seconds. Upgraded sealing material avoid any leak.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 3.

Updated split-type dc solenoid

Newest 12 DC split-type solenoid instead AC models, more safe and stable.

Customer reviews
Customer reviews
Excellent value for the money! First time setting up Co2 injection system and was intimidated at first, but didn't need the instructions to setup/operate. It's very sturdy and snugly attached to my C02 tank. Gauges are easily read, solenoid quiet, dials responsive, and comes with 2 BUBBLE COUNTERS! So I can inject Co2 into 2 aquariums using 1 C02 tank. Only con is that adjusting the bubble counter to a precise flowrate is difficult because dials are a tough to turn with millimeter accuracy. It took me about 6 minutes to get my flowrate to 1 drop per second. However, considering the price tag for a well performing device this is SO worth the purchase!!!! A few youtubers recommended C02ArtPro, but so far I don't believe the extra quality is worth the hefty price tag. RECOMMENDATION: Buy this and don't look back!
— Xaiban
Customer reviews
I was in need of an upgrade for my cO2 regulator and this Fzone Pro dual stage regulator has exceeded my expectations! Unboxing it I was very pleased with the build quality and fit/finish. I’m replacing a very well known brand of regulator and in comparison this Fzone regulator has several improvements and functions much better as well. The extra manifold block is a huge bonus that I plan on using in the future so that I can run two aquariums off of this one regulator. The needle valve/metering block where you adjust the cO2 flow is much less sensitive than my old regulator and is actually a breeze to dial in your flow to exactly what you want which was a huge complaint of mine on my old regulator. The cO2 solenoid looks to be of better quality, the regulator to cO2 tank connection has a built in rubber o ring which is the first time I e seen that feature, you still use a standard seal as with any other but I think it’s just another upgrade that Fzone included. I like the white face gauges better too. Overall I am super happy with it and for the price I don’t know of anything that can compare. In fact this was cheaper than my old regulator and it’s better in many ways not just one. If you’re on the fence just buy it, I really think you will be happy with it!
— Dustin Kliewer
Customer reviews
What a great-quality regulator at affordable price. It feels very well-made and intuitive to use. It's identical to CO2Art in every day except that it's half of the price. I also bought the FZone diffuser and tube. As you can see in the video, it breaks the bubbles really small. I would recommend get the entire Fzone set for your high-tech aquariums. It's really the best product on the market right now.
— Ziqi Xiong