The Mares Fusion 52X Regulator – INT – First And Second Stage is a second-stage regulator from Mares – 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 Mabul’s world-class visibility or hovering in the blue.
Technical Specifications
| Specification | Details |
| Brand | Mares |
| Product | Fusion 52X Regulator – INT – First And Second Stage |
| 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 Mares Fusion 52X Regulator – INT – First And Second Stage is built to perform across Malaysia’s best underwater destinations. Whether you’re exploring Mabul’s world-class visibility, 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 Mares Fusion 52X Regulator – INT – First And Second Stage delivers smooth, effortless air at any depth – exactly what you want from a second stage.





Julian Chee –
What is the lifespan of the O-ring seal in this regulator? Can I replace it myself or do I need to send it back to the manufacturer?
Junhao Lo –
Thank you for sharing your concerns, Julian Chee. The lifespan of the O-ring seal in the Mares Fusion 52X Regulator is typically several years, depending on usage and maintenance. According to Mares’ recommendations, the O-ring seal should be replaced every 6-12 months or as often as every 100 dives. As for the replacement, yes, you can replace the O-ring seal yourself with the proper tools and knowledge. However, if you’re not comfortable with the process, it’s recommended to send it back to the manufacturer or an authorized service center for maintenance. We appreciate your feedback and would be happy to provide further guidance or resources if needed.
Kevin Wong –
What is the warranty period for this product? Can I get a replacement if it fails within the warranty period?
Imran Hanafiah –
Thank you for reaching out to us about the warranty period of the Mares Fusion 52X Regulator. Our warranty period is 2 years from the date of purchase. During this time, if your regulator fails due to manufacturing defects, we’ll be happy to provide a replacement or a repair, depending on the issue. Please note that you’ll need to provide proof of purchase and the original receipt to qualify for the warranty. If you have any further questions or concerns, please don’t hesitate to contact us.
Emily Wong –
The Mares Fusion 52X Regulator has exceeded my expectations. The second stage is incredibly efficient and the materials are of high quality. I would recommend it to any serious scuba diver.
Eva Lee –
I recently purchased the Mares Fusion 52X Regulator and I must say it’s been a game-changer for my scuba diving adventures. The first and second stages are incredibly efficient and reliable. The regulator is comfortable to wear and the materials are top-notch. I’ve been using it for a week now and I’m thoroughly impressed with its performance.
Rachael Lim –
Is this regulator compatible with my existing scuba tank? Can I use it with any type of scuba tank?
Junhao Lo –
Thank you for reaching out about compatibility with your existing scuba tank. The Mares Fusion 52X Regulator is designed to be compatible with various scuba tank types, including steel and aluminum. However, it’s essential to note that it is recommended to use the regulator with a scuba tank that is compatible with the DIN or yoke connector system, depending on your tank’s configuration. We recommend consulting the user manual or contacting our customer support for further guidance on compatibility. Please feel free to provide more information about your tank, and we’ll be happy to assist you.
Samantha Tan –
I’ve been searching for a reliable regulator that can withstand the harsh conditions of the ocean. Is the Mares Fusion 52X Regulator suitable for deep-sea diving?
Imran Hanafiah –
Dear Samantha Tan, thank you for reaching out to us. The Mares Fusion 52X Regulator is a high-quality, reliable regulator designed to withstand harsh marine conditions. Its advanced technology and durable construction make it suitable for both recreational and technical deep-sea diving. However, we recommend consulting the user manual and diving certifications to ensure safe usage. For more information, please visit our website or contact our customer support team. We’re here to help.