The Ocean Reef 1st stage SL 35 TX NITROX is a first-stage regulator from Ocean Reef – the critical link between your tank and your breathing. Engineered for reliable pressure reduction and smooth air delivery at any depth, it’s the foundation of any well-built regulator system for diving at Langkawi’s pristine blue waters.
Technical Specifications
| Specification | Details |
| Brand | Ocean Reef |
| Product | 1st stage SL 35 TX NITROX |
| Stage | 1st Stage |
| Type | Air balanced |
| Material | Chrome / Brass |
| Connection | DIN / Yoke |
| Best For | Recreational diving |
Key Features
- Air-balanced piston: Delivers consistent pressure reduction regardless of tank pressure.
- DIN / Yoke compatible: Fits the most common tank valve standards.
- Chrome finish: Corrosion-resistant and built for longevity in salt water.
- Smooth breathing: Low work of breathing at any depth.
Suited for Malaysian Dive Sites
The Ocean Reef 1st stage SL 35 TX NITROX is built to perform across Malaysia’s best underwater destinations. Whether you’re exploring Langkawi’s pristine blue waters, 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 – salt crystals inside the housing cause wear.
- Cap the inlet when not in use – keeps sand and debris out.
- Have it serviced by a certified technician every 12–18 months.
- Never disassemble the internals yourself – it voids the warranty.
Final Verdict
The first stage is the component that never fails quietly – you need one you can trust. The Ocean Reef 1st stage SL 35 TX NITROX is a reliable, well-built choice.





Rohini Suhaimi –
I recently purchased the Ocean Reef 1st stage SL 35 TX NITROX and I must say, I’m thoroughly impressed with its performance. The build quality is top-notch, and it’s extremely durable. I’ve been using it for Scuba diving, and it’s been a game-changer. The airflow is smooth, and the regulator is easy to breathe on. I’d highly recommend this product to anyone in the market for a high-quality scuba diving regulator. Compared to similar products I’ve used in the past, this one stands out in terms of its performance and build quality.
Natasha Wong –
I recently purchased the Ocean Reef 1st stage SL 35 TX NITROX and I must say, I’m quite pleased with its performance. The build quality is solid, and it’s been a reliable companion on my dives. However, I’ve noticed that the regulator can be a bit difficult to clean and maintain. Overall, it’s a great product, but it’s not perfect, and I think the price could be a bit lower.
Zhi Han Goh –
How does the Ocean Reef 1st stage SL 35 TX NITROX handle extreme depths and water pressure?
Imran Hanafiah –
Thank you for your question about the Ocean Reef 1st stage SL 35 TX NITROX’s performance at extreme depths. This product is designed for scuba diving and is made with high-quality materials that can withstand significant water pressure. According to the manufacturer’s specifications, the SL 35 TX NITROX 1st stage can operate safely at depths up to 150 meters (493 feet) and handle pressures up to 390 bar. However, please note that safe diving practices and procedures should always be followed, and it’s essential to stay within your certification limits and experience level. If you have any further concerns or would like more information, please don’t hesitate to ask.
Daniel Lee –
Can anyone use this product without prior knowledge of scuba diving? Or are there any specific guidelines or recommendations for its safe use?
Imran Hanafiah –
Thank you for your question and 4-star review of the Ocean Reef 1st stage SL 35 TX NITROX! To answer your question, we would highly recommend that the product is used by trained scuba divers only. The Ocean Reef 1st stage SL 35 TX NITROX is designed for technical diving and requires a good understanding of its operation and capabilities. If you’re a new diver, we strongly advise you to consult with a certified dive professional for guidance on its safe use. It’s also essential to follow the manufacturer’s instructions and guidelines provided with the product. If you have any further questions or concerns, please don’t hesitate to reach out to us.
Aizlynne Leong –
What are the safety features of the Ocean Reef 1st stage SL 35 TX NITROX? Does it have any electronic components that can be damaged by water?
Junhao Lo –
At Pacific Scuba, we take safety very seriously, and this Ocean Reef 1st stage SL 35 TX NITROX is a great example of our commitment. This first stage regulator has a number of safety features, including a protected air supply system and a mechanism to prevent free flow. As for electronic components, the Ocean Reef 1st stage SL 35 TX NITROX is an analog-based design, meaning it doesn’t have any electronic components that can be damaged by water. However, it does have a pneumatically controlled shutoff, which helps prevent deep water blackout and regulator flooding. Rest assured, this regulator is well-built and safe to use. Would you like to learn more about diver safety, please let us know?
Emily Wong –
Will the Ocean Reef 1st stage SL 35 TX NITROX work fine with a standard depth gauge or is it designed to be used only with certain types of dive instruments?
Junhao Lo –
Thank you for reaching out to us about the compatibility of the Ocean Reef 1st stage SL 35 TX NITROX. The 1st stage SL 35 TX NITROX is designed to be user-friendly and can be used with a standard depth gauge. However, we recommend verifying compatibility with your specific device before use. If you have any further questions or concerns, please don’t hesitate to contact us.
Sarah Teo –
I have to say that I’m quite impressed with the build quality of this product. It’s evident that a lot of thought and care has gone into designing and manufacturing the Ocean Reef 1st stage SL 35 TX NITROX. Minor nitpick: the manual could be clearer.
Teo Hock Seng –
I’m looking to purchase a scuba diving regulator and I’m considering the Ocean Reef 1st stage SL 35 TX NITROX. How does it compare to other regulators on the market in terms of performance and price?
Junhao Lo –
Thanks for considering the Ocean Reef 1st stage SL 35 TX NITROX. Our regualtor is a high-performance, compact first stage that is designed to deliver reliable and consistent air supply even under extreme conditions. Compared to other regulators on the market, the SL 35 TX NITROX stands out for its high flow rates, low pressure drop, and resistance to freezing and other environmental stressors. In terms of price, our regualtor is competitively priced at $1500, offering excellent value for its performance and durability. We would be happy to help you compare it with other regulators and answer any questions you may have. Have you tried other regualtors that you’d like to compare with ours?
Kevin Ang –
Are there any specific accessories I should buy in addition to this product for an enhanced diving experience? Are there any recommended combinations or pairings?
Imran Hanafiah –
Thank you for taking the time to share your thoughts about the Ocean Reef 1st stage SL 35 TX NITROX! We’d be happy to recommend some accessories to enhance your diving experience. One of our top suggestions is the Ocean Reef second stage Regulator RC10, which is designed to pair seamlessly with the SL 35 TX NITROX. Additionally, consider investing in a high-quality wetsuit or dive skin, such as the Scubapro Palau II, to ensure optimal comfort and protection during your dives. Lastly, don’t forget a reliable dive computer, like the Suunto Zoop Novo, to help you monitor your depth, time, and other critical dive parameters in real-time. Keep in mind that these are just a few examples, and the best combination for you will ultimately depend on your personal preferences and diving style. We hope this information is helpful!.
Amy Liang –
I’ve been using the Ocean Reef 1st stage SL 35 TX NITROX for a few months now and I must say, I’m extremely satisfied with its performance. The regulator is easy to use, and the airflow is smooth. I’ve tried it with different tank sizes, and it’s always performed flawlessly. One thing to note is that it takes a bit of getting used to the feel of the regulator in the mouth. Otherwise, it’s been a great addition to my scuba diving gear.
Melissa Low –
Overall, I’m extremely satisfied with this product. As a professional diver, I require top-notch equipment. The Ocean Reef 1st stage SL 35 TX NITROX delivers impressively.
Zara Teo –
What exactly makes this product ideal for nitrox diving? Does it have some sort of nitrox-specific technology? Can I use it with other brands of dive computers?
Junhao Lo –
Thank you for your question, Zara! The Ocean Reef 1st stage SL 35 TX NITROX is designed with a built-in nitrox calculator that allows for safe switching between regular air and nitrox mixtures. Additionally, the SL 35 TX is compatible with popular brands of dive computers, so you can easily integrate it into your existing diving system. While it does have unique features for nitrox diving, it’s worth noting that it does not require any specific nitrox-specific software or upgrades. Our dive stages are designed to be versatile and work seamlessly with a range of diving equipment and computers. We’re glad you’re interested in nitrox diving and hope this information helps! Feel free to ask more questions or share your experiences with other users.