When managing high-tech layouts, large displays (20 gallons and above), or splitting gas across a multi-tank setup, you need the ultimate level of precision and pressure stability. The UNS Pro Dual Stage CO₂ Regulator is a commercial-grade powerhouse wrapped in a beautiful Space Grey finish. Featuring a sophisticated dual-stage design, it monitors both your internal tank pressure and your direct working output pressure simultaneously, eliminating end-of-tank dumps while providing smooth, high-pressure output for large systems.
This item qualifies for FREE shipping to the contiguous U.S. Shipping to Alaska or Hawaii? Contact us for a custom shipping quote—we’re here to help!
| Attribute | Specification |
|---|---|
| Brand | Ultum Nature Systems (UNS) |
| Model | UNS Pro Dual Stage CO2 Regulator |
| Color Finish | Sleek Space Grey |
| Working Pressure Range | 0–70 PSI Adjustable (0–5 BAR / Gauge range up to 160 PSI) |
| High-Pressure Gauge Range | 0–4,000 PSI (0–275 BAR) |
| Safety Pressure Relief Valve | Vents automatically at 100 PSI |
| Tank Thread Compatibility | Standard North American CGA320 Cylinders |
| Solenoid Power Spec | Integrated Low-Voltage 12V DC Transformer |
1. Can I expand this regulator to run CO2 on multiple aquariums?
Yes! The UNS Pro Dual Stage Regulator includes modular manifold blocks with needle valves and bubble counters. You can add additional manifold blocks to run up to several aquariums independently off a single CO2 cylinder.
2. Why is a higher working pressure (up to 70 PSI) important?
High working pressure is crucial when using inline diffusers, reactor chambers, or dense ceramic diffusers that require high push pressure (often 30–45+ PSI) to atomize micro-bubbles effectively.
3. Will the UNS Pro Regulator fit paintball cylinders?
The UNS Pro features standard CGA320 threads designed for full-size aluminum tanks. While a CGA320-to-paintball adapter can be used, we recommend pairing the UNS Pro with standard 2.5LB, 5LB, 10LB, or 20LB CGA320 cylinders for optimal stability.
Setting up pressurized carbon dioxide is far simpler than it appears! Explore our step-by-step guides to master your setup:
Overall rating: 4.652174 / 5 from 46 reviews.
Review topics: ["shipping","quality","design","issues","looks","set","regulator","equipment","bubble counter","valves","sense","works"].
"Was going great until I swapped co2. After installing the new co2 tank and twisting the knob the second gauge dropped fo zero. Tried adjusting the knob left and right but needle was still stuck at zero. At some point the sticker even came off. Extremely disappointed with this item. Paid double the price compared to their competitors. Will be trying out other options and most likely not using UNS again. WOULD NOT RECOMMEND"
"Works great"
"Good quality recommended"
"I was expecting a lot when i purchased this and it lived up to my expectations. Its my first time using co2 and it already seems to be making a difference."
"Good"
"I would say the UNS products are top grade from my experience and Ive had aquariums since 1979 or round about from1/2gal to an 8’x3’x3’—350 gal I had made special in florida. I only keep small ones now Im in my 70’s so its easier that way!"
"Very nice system. Easy to setup Ultum Nature Systems also has a Youtube video with trouble shooting should you run into any problems. I was trying to run multiple drop checkers because I have a nice looking glass spiral bubble counter and was going to run this into an inline diffuser. The trouble shooting video mentioned that you may have problems trying to run multiple drop checkers. Once I decided not to use the inline diffuser everything worked perfectly. Been going on a Philips Hue smart plug timer for a few weeks now."
"Better than other brand."
"This is the nicest looking regulator I’ve ever seen. Brushed grey finish looks really nice. And team Buce plant gets the credit for a lightning fast delivery from California. Perfect. A++"
"Timely delivery, accurate, and well packed 👍"
