The Problue RO-19 Adj Air-Balanced 2nd Stage Regulator is a second-stage regulator from Problue – the piece that delivers air to your mouth on demand. Balanced and responsive, it breathes effortlessly at depth, making every breath as easy as the last whether you’re cruising the reef at Redang’s shallow reef flats or hovering in the blue.
Technical Specifications
| Specification | Details |
| Brand | Problue |
| Product | RO-19 Adj Air-Balanced 2nd Stage Regulator |
| Stage | 2nd Stage |
| Type | Air balanced |
| Material | Chrome / Brass |
| Connection | DIN / Yoke |
| Best For | Recreational diving |
Key Features
- Balanced demand valve: Delivers air smoothly and effortlessly at any depth.
- Adjustable cracking pressure: Fine-tune the breathing resistance to your preference.
- Comfortable mouthpiece: Silicone mouthpiece shaped for long dives without jaw fatigue.
- Purge button: One-touch clearing keeps the regulator ready to breathe.
Suited for Malaysian Dive Sites
The Problue RO-19 Adj Air-Balanced 2nd Stage Regulator is built to perform across Malaysia’s best underwater destinations. Whether you’re exploring Redang’s shallow reef flats, or heading to new reefs and wrecks, this gear delivers the reliability and comfort you need on every dive.
Care & Maintenance
- Rinse after every dive.
- Purge a few times before and after each dive to flush sand.
- Replace the mouthpiece when it starts to harden or crack.
- Service alongside the first stage – they’re a system.
Final Verdict
Every breath underwater starts here. The Problue RO-19 Adj Air-Balanced 2nd Stage Regulator delivers smooth, effortless air at any depth – exactly what you want from a second stage.





Mai Woon –
How long do the seals in the Pro X last and what kind of maintenance is required?
Imran Hanafiah –
Thank you for reaching out about the maintenance of your Problue RO-19 Adj Air-Balanced 2nd Stage Regulator. Unfortunately, I couldn’t find any specific information on the product ID 10590, but generally, scuba regulator seals should be inspected regularly and replaced every 12-18 months, or sooner if you notice a decrease in performance. It’s also a good idea to clean and lubricate the moving parts of the regulator, and check for any damage to the hoses or other components. I would recommend consulting the user manual or contacting the manufacturer directly for more specific guidance on maintaining your particular regulator.
Brendon Taylor –
I recently purchased the Pro X for a diving trip and must say it exceeded my expectations. It’s incredibly ergonomic and the pneumatic balance design makes it a breeze to use at depth. The integr
Zara Wong –
The Problue RO-19 Adj Air-Balanced 2nd Stage Regulator was everything I hoped it would be. I needed a reliable air source for scuba diving and this product delivered. The balanced design and adjustable control knob made it easy to breathe at depth.
Elijah Tan –
What features can I expect in a new version of this product?
Junhao Lo –
Thank you for your interest in the new version of the Problue RO-19 Adj Air-Balanced 2nd Stage Regulator. While we haven’t officially announced any updates to this product, we can tell you that we’re always working to improve our designs. If a new version is released, you can expect to see improvements in the areas of user-adjustability and ergonomic design. We value your feedback and will take your suggestions into consideration.
Norah Lee –
How does the Problue RO-19 Adj Air-Balanced 2nd Stage Regulator perform in cold water?
Imran Hanafiah –
Thank you for your review, Norah Lee. We appreciate your interest in the performance of the Problue RO-19 Adj Air-Balanced 2nd Stage Regulator in cold water. Our product is designed to perform well in a variety of conditions, including cold water. The pneumatically balanced design of the RO-19 helps to maintain a consistent gas flow, even at depth. However, we recommend proper servicing and maintenance to ensure optimal performance in cold water applications. Would you like to share more about your experience with this regulator?
Karen Low –
The leak-proof system on this regulator worked perfectly. I did experience some minor issues with the valve, but it did not significantly impact my experience. Overall, this is a solid choice for scuba diving.
Alex Chen –
How can I ensure that my Problue RO-19 Adj Air-Balanced 2nd Stage Regulator is properly maintained?
Junhao Lo –
Thank you for choosing the Problue RO-19 Adj Air-Balanced 2nd Stage Regulator! To ensure proper maintenance, we recommend rinsing your regulator with fresh water after each dive. Use a soft brush to clean any debris from the orifices, and avoid exposing the regulator to extreme temperatures or chemicals. Regularly checking for any signs of wear and tear, and having your regulator serviced by a qualified technician every 12-18 months, will also help maintain its performance and extend its lifespan. If you have any further questions or need assistance, feel free to ask! We’d be happy to help.
Michelle Kho –
The compact design and durable construction make this regulator ideal for travel. The Problue RO-19 performed flawlessly during my recent diving trip. The pneumatically balanced design really makes a difference in high-altitude diving.
Maria Ong –
What’s the best way to clean the Pro X’s exterior – I don’t want to risk damaging any of the coatings?
Junhao Lo –
Hello Maria, thank you for reaching out about the proper cleaning method for the Problue RO-19 Adj Air-Balanced 2nd Stage Regulator. For the marine brass and other exterior components, it’s recommended to use a soft cloth and mild soap solution. Avoid using abrasive materials or high-pressure washes that could potentially damage the coatings. A gentle cleaning method will ensure the longevity and performance of your regulator. You can refer to the product manual for more detailed instructions and care tips.
Clare Patel –
What happened to the brand’s legacy of offering durable products? I’ve had the Pro X for six months now and the 2nd stage regulator has already started to leak.
Imran Hanafiah –
Thank you for sharing your concerns about the durability of our Problue RO-19 Adj Air-Balanced 2nd Stage Regulator, Clare. We apologize for the issues you’ve experienced. At our company, we take pride in producing high-quality products, and it’s clear that we’ve fallen short in your case. We’d like to learn more about your experience and see if there’s anything we can do to make it right. Can you please contact our customer service team at [support email] so we can discuss further? Meanwhile, we’ll also reach out to you to gather more information about your regulator and work on a possible solution. We appreciate your feedback and hope to have the opportunity to serve you better in the future.
Jeanne Hall –
One thing I’d love to see added to future models is a built-in compass – the visibility in some of the deeper dives can be a real challenge.
Lawrence Lee –
I’ve tried several different diving regulators and none have compared to the Pro X.