Dymax Co2 Pro Regulator RX-123

Dymax Co2 Pro Regulator RX-123

The Dymax Co2 Pro Regulator RX-123 is a CO2 regulator for accurate gas control on both freshwater and marine aquariums. It suits aquarists who want measured, well-timed CO2 injection from a solid, corrosion-resistant regulator.

Key Benefits

• Accurate CO2 regulation for freshwater and marine aquariums alike.
• Solid aluminium construction that resists corrosion from salt water.
• Lightweight body that fastens onto the cylinder with no tools required.
• Included solenoid, combined with the bubble counter, for a measured and timely injection of CO2 into your fish tank.
• Solenoid design that runs on low energy and produces minimal heat.
• Built to be safer and more durable than many other regulators on the market.

Why the Solenoid Design Matters

Leaks in other regulators are often traced to the heat a solenoid valve generates while it operates, which causes expansion. The RX-123 uses a different design that keeps the solenoid's energy use low and its heat minimal. This means the heat will not damage any part of the regulator, which helps it stay leak-free and last longer.

How to Use

• Fasten the regulator onto the CO2 cylinder by hand, as no tools are needed.
• Use the solenoid together with the bubble counter to deliver CO2 to the aquarium in a measured, timed way.

Suitable For

• Freshwater aquariums.
• Marine aquariums, where the aluminium body resists salt-water corrosion.
• Aquarists who want a lightweight regulator that is easy to fit to the cylinder.

Specifications

• Model: RX-123
• Material: solid aluminium
• Corrosion resistance against salt water
• Light in weight
• Tool-free fastening onto the cylinder
• Solenoid with low energy use and minimal heat
• Works with a bubble counter

What's Included

• 1 x Dymax Co2 Pro Regulator RX-123 with solenoid

Frequently Asked Questions

Can I use this regulator on a marine aquarium?
Yes. The RX-123 is made for both freshwater and marine aquariums, and its solid aluminium body resists corrosion from salt water.

Do I need tools to fit it to the cylinder?
No. The lightweight regulator fastens onto the cylinder without any tools.

Does it come with a solenoid?
Yes, the solenoid is included. Combined with the bubble counter, it gives you a measured and timely injection of CO2 into your tank.

Why does solenoid heat matter for leaks?
Heat generated by a solenoid valve during operation can cause expansion, a common source of leaks in other regulators. The RX-123's solenoid uses low energy and produces minimal heat, so it does not damage any part of the regulator.

Is a CO2 cylinder included?
The product information lists the regulator with its solenoid. A cylinder is not listed, so plan to have one ready for the regulator to fasten onto.

When can I expect delivery?

• Gauteng (Jhb/Pta) - 1-3 working days
• Nationwide (Cpt/Dbn+) - 2-5 working days
• Outlying Areas - 3-7 working days

All orders are sent via Economy Road, typically through Fastway or Internet Express Couriers*. Estimated timeframes are not guaranteed. Once the order is collected by the courier, we have no control over third-party logistics and cannot make any time promises.

If you prefer a faster 🚀 shipping option, we also offer The Courier Guy during checkout in the dropdown selection. Please note that this option is not free, and you must choose it to use it. Please pay careful attention to the cutoff times and delivery timeframe for these options during checkout.

Enjoy the convenience of collection points and lockers! 📦

No more waiting at home or at work for your delivery. Simply choose a collection locker or pickup point and collect your order when it suits you.

Delivery times to lockers and pickup locations typically range from 2–7 working days, depending on your location.*

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Collection timeframes:

• Bob Box: Collect within 2 days of receiving your collection notification.
• PUDO Lockers: Collect within 36 hours of receiving your collection PIN or SMS notification.

If a PUDO parcel is not collected within 36 hours, it will automatically be transferred to the nearest PUDO Kiosk or Depot at no additional cost. The parcel will then be held there for approximately 2 days before being returned.

Please ensure you collect your parcel within the applicable collection period. Uncollected parcels will be returned to the sender, and additional shipping charges may apply should the order need to be resent.