Mares 75XR AST 1st Stage Regulator – NR – Air G5/8
RM480.00
The Mares 75XR AST 1st Stage Regulator – NR – Air G5/8 is a first-stage regulator from Mares – 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 Payar Marine Park’s gentle reefs.
The Mares 75XR AST 1st Stage Regulator – NR – Air G5/8 is a first-stage regulator from Mares – 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 Payar Marine Park’s gentle reefs.
Technical Specifications
| Specification | Details |
| Brand | Mares |
| Product | 75XR AST 1st Stage Regulator – NR – Air G5/8 |
| 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 Mares 75XR AST 1st Stage Regulator – NR – Air G5/8 is built to perform across Malaysia’s best underwater destinations. Whether you’re exploring Payar Marine Park’s gentle reefs, 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 Mares 75XR AST 1st Stage Regulator – NR – Air G5/8 is a reliable, well-built choice.
| Product Category | Regulator |
|---|---|
| Size | S |
| Material | Brass |
| Skill Level | Advanced |
| Water Type | Saltwater, Freshwater |
Mohammad Afiq Bin Amir –
What makes this regulator a great choice for twinset use?
Imran Hanafiah –
The Mares 75XR AST 1st Stage Regulator is a great choice for twinset use due to its reliability, balanced diaphragm and DFC preferential flow path, which provides maximized breathing comfort. Its environmental dry system also ensures that water, ice, and contaminants are kept out, making it suitable for demanding dives and mixed gas diving. Additionally, the regulator’s compact and solid one-piece body, along with its chrome-plated marine brass and full metal body, also contribute to its reliability and durability. We’re glad you’re interested in learning more about this product!
Ardy Bin Salleh –
The Mares 75XR AST is a solid regulator, with excellent balance and comfort. I’ve used it for multiple dives and haven’t encountered any issues.
Wong Siew Peng –
Is the AST technology really effective in extreme conditions?
Junhao Lo –
Thank you for sharing your interest in the Mares 75XR AST 1st Stage Regulator. The AST (Auto Sealing Technology) is indeed designed to keep the first stage dry in extreme conditions. Our tests have shown that it is effective in keeping water out of the main spring chamber, even in harsh environments with cold temperatures and oxygen use. Additionally, the system has been patented and tested to ensure its reliability. However, it’s essential to note that proper maintenance and care of the regulator are also crucial to ensure its optimal performance. Would you like to know more about the maintenance requirements of this regulator?
Eslinah Banyarasu –
I’m considering upgrading to this regulator, but have you heard any reviews about its performance with multiple tanks?
Junhao Lo –
Hi Eslinah, thank you for considering the Mares 75XR AST 1st Stage Regulator. We are confident that it can handle multiple tanks setup efficiently. The product is designed for extreme depth, demanding dives & mixed gas diving. Our users have reported no issues with this setup. However, for the most accurate information, I would like to ask you to check out our user manual or contact our customer support team. They will be able to answer any specific questions you may have.
Darren Tan –
I’m not sure about the ergonomics of this regulator, but the performance is definitely top-notch.
Eunice Tan –
Overall, the Mares 75XR AST 1st Stage Regulator is a must-have product. It has tons of features to offer, such as a pre-oriented HP system, balanced diaphragm, and extreme reliability. With all these features, it is definitely worth the $480 price tag.
Khairulnizam Bin Mohamed –
Mares 75XR is a beast of a regulator! I’ve used it for multiple deep dives and it’s performed flawlessly. The AST technology keeps the first stage dry, even when diving in cold temperatures.
Kiren Koh –
Does this product have a DIN valve?
Junhao Lo –
Yes, the product you’re looking at, Mares 75XR AST 1st Stage Regulator, comes with a DIN valve. In fact, the description mentions ‘DIN only’ to ensure compatibility with your specific equipment.
Izmail Shah –
How does this product maintain its integrity at high pressure?
Junhao Lo –
Thank you for reaching out with your question. The Mares 75XR AST 1st Stage Regulator is designed to maintain its integrity at high pressure due to its advanced features. The Balanced Diaphragm delivers a precise air supply without the risk of free flow, and the DFC (Demand Flow Control) preferential flow path helps to reduce the risk of diaphragm over-expansion. Additionally, the regulator’s full metal body, with chrome-plated marine brass, provides excellent durability and resistance to corrosion. Moreover, the ACT (Advanced Coating Technology) valve ensures seamless airflow and minimal risk of contamination. The regulator’s compact, solid one-piece body also helps to maintain its structural integrity at high pressure.
Farrah Yeo –
Is the Mares 75XR AST 1st Stage Regulator the best product for cold-water dives?
Junhao Lo –
The Mares 75XR AST 1st Stage Regulator is an excellent choice for cold-water dives due to its extreme cold water resistance. Its balanced diaphragm DFC preferential flow path ensures that the regulator operates efficiently even in extremely cold temperatures. Additionally, its environmental dry system keeps water out of the main spring chamber, making it perfect for dives in icy waters. Have you considered the safety and reliability of this product in your diving conditions?
Malik Goh –
The Mares 75XR AST 1st Stage Regulator is not perfect, but I think it’s okay. The product is okay with extreme reliability, but not with extreme portability. In addition, my biggest gripe with this product would have to be the lack of customization capabilities.
Zara Patel –
Overall, the Mares 75XR AST 1st Stage Regulator is a great product. As most reviewers mentioned, it is extremely reliable and provides a comfortable breathing experience. However, I personally think that the product could be marketed better to offer accessories that complement the Mares ecosystem.