Professional Double Gauge CO2 Dispenser With Response Pressure Regulator For Aquarium Plant
£52.27 inc. VAT (£43.56 ex. VAT)
- Double gauges show cylinder and working pressure at a glance.
- Response pressure regulator delivers steadier CO2 flow for healthier planted tanks.
- Fine adjustment helps dial in precise bubble rates for sensitive aquascapes.
- Professional regulator setup reduces CO2 waste and cuts refill frequency.
Why Choose DoublGauge
Beginner-friendly control with pro-level stability
The DoublGauge Pro is a planted aquarium co2 regulator built to remove the stress from CO2 setup. Instead of overwhelming you with technical jargon, it gives you what actually matters in day-to-day fishkeeping: stable output, easy adjustment and clear readings you can understand at a glance. The double gauge format shows both cylinder pressure and working pressure, helping you tune your aquarium co2 dispenser with confidence.
Healthier plant growth, easier algae control
Consistent CO2 is one of the biggest upgrades you can make to a planted tank. This co2 pressure regulator supports steady delivery for stronger plant growth, improved colour and a more balanced aquarium environment. A stable bubble rate also makes it easier to coordinate CO2 with lighting and fertiliser dosing, reducing the swings that often contribute to algae problems or stressed livestock.
Built for UK cylinders and daily reliability
The regulator is designed around standard UK W21.8 / DIN 477 cylinder compatibility, so British buyers can purchase with confidence. An integrated solenoid valve allows automated on/off control with a timer, while the precision needle valve gives fine bubble-rate adjustment for nano, mid-size and larger planted aquariums. The built-in bubble counter and check valve simplify installation and reduce the number of separate parts needed.
Safer pressure management from full tank to empty
With stable pressure reduction and quality sealing components, the DoublGauge Pro is engineered to help prevent sudden end-of-cylinder output swings. That means more predictable dosing, less daily fiddling and greater peace of mind for aquascapers who care about plant performance without compromising fish safety.
Technical Specifications
- W21.8 x 1/14 DIN 477
- 0.5-6 bar adjustable
- 0-250 bar
- 0-10 bar
- AC 220-240V, 50Hz, 6W
- Up to 1 bubble per 3 seconds fine adjustment
- Nickel-plated brass with stainless steel fittings
- 165 × 125 × 62 mm
- 780g
- 2 Years UK
Price Comparison
See how our price compares across UK retailers
| Retailer | Price | Delivery | Warranty |
|---|---|---|---|
| DoublGauge UK (Specialist)BEST | £52.27 | FREE | 12 months + UK Support |
| eBay (est.) | £65.34 | Varies | Seller dependent |
| High Street RRP | £83.63 | N/A | Varies |
Prices checked 13 July 2026. Prices may vary.
Customer Reviews
I bought this as my first proper aquarium co2 regulator and it was far less intimidating than expected. The double gauges are easy to read, the needle valve is sensitive enough for a very slow bubble rate, and my Monte Carlo has started spreading properly within two weeks.
Arrived quickly and was clearly packaged for UK cylinder fitting. I was specifically looking for a co2 pressure regulator with a built-in solenoid and bubble counter, and this saved me buying separate bits. Setup on my 120L planted tank took about 20 minutes.
From an aquascaping perspective, pressure stability is the standout feature here. The working pressure stays consistent and the dual gauge layout makes monitoring straightforward. Plant growth has been noticeably more even and I'm seeing less BBA compared with my previous single gauge setup.
Very solid regulator and definitely a step up from budget models. The only minor criticism is that the initial needle valve tuning is quite precise, so you need to take your time. Once set, though, it holds bubble rate well and the solenoid has been reliable.
I nearly bought a competing model from DOUBLGAUGE but chose this because the UK compatibility was explained more clearly. Glad I did. It fitted my W21.8 cylinder perfectly and the built-in check valve made the whole aquarium co2 valve setup much tidier.
Using this on a high-light aquascape with stems and carpeting plants. The co2 flow regulator is precise enough to keep my drop checker stable through the day. I would have liked printed quick-start instructions in the box, but the regulator itself feels premium and performs well.
Excellent value for money compared with buying a separate solenoid, bubble counter and dual gauges. The finish looks smart, it feels robust, and my fish have been much calmer since I switched from inconsistent DIY dosing to this proper planted aquarium co2 regulator uk setup.