The Mares Twin Tank Steel Conc. 12L is a scuba cylinder from Mares – the pressurised container that holds your breathing gas. Aluminium or steel construction, precision-machined and pressure-tested, it’s the backbone of every dive at Langkawi’s pristine blue waters.
Technical Specifications
| Specification | Details |
| Brand | Mares |
| Product | Twin Tank Steel Conc. 12L |
| Material | Steel |
| Capacity | – |
| Working Pressure | 200 bar |
| Valve | DIN / Yoke |
| Best For | Recreational diving |
Key Features
- Precision machined: Walls are uniform and strong – holds pressure consistently.
- Pressure tested: Every cylinder is tested before it leaves the factory.
- Standard valve fitting: DIN or yoke – fits any regulator system.
- Durable finish: Anodised coating resists corrosion and scratches.
Suited for Malaysian Dive Sites
The Mares Twin Tank Steel Conc. 12L 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 the outside after every dive.
- Inspect the valve and O-ring before each dive.
- Have it hydrostatically tested on the manufacturer’s schedule.
- Never fill above the rated working pressure.
Final Verdict
The pressurised heart of every dive. The Mares Twin Tank Steel Conc. 12L is precision-built, pressure-tested, and built to last – the foundation everything else depends on.





Rachel Tan –
Overall, the product’s quality and performance were very impressive. It’s definitely worth the price!
Carmen Goh –
I purchased this product and I was really happy with how it solved my problem. It exceeded my expectations!
Nicole Lee –
I was wondering if this product is more suitable for professionals or also for recreational use?
Junhao Lo –
Thank you for your question, Nicole. The Mares Twin Tank Steel Conc. 12L is a versatile product that can be suitable for both professionals and recreational users. While it’s true that some of our customers are professional scuba divers, others enjoy using this product for leisure dives. If you’re looking to use it for recreational purposes, we recommend checking the product manual and familiarizing yourself with the equipment before taking it out for a dive. We’re confident that with proper use and maintenance, this product can be a great addition to either a professional or recreational diving experience.
Ethan Foo –
What features of this product make it stand out from similar products in the market?
Junhao Lo –
Thank you for taking the time to share your thoughts about the Mares Twin Tank Steel Conc. 12L. We’re glad to hear that you’re satisfied with the product. The features that set our product apart from similar ones in the market include its high-quality steel construction, compact design, and excellent corrosion resistance. These factors make it an ideal choice for divers who value durability and reliability. Additionally, our product’s 12-liter capacity allows for longer dives without the need for frequent refills.
Amirah Ong –
What if this product comes with a more user-friendly interface?
Imran Hanafiah –
Thank you for taking the time to review the Mares Twin Tank Steel Conc. 12L! We appreciate your feedback about the user interface. We understand that a user-friendly interface is crucial for a seamless experience. Our developers are constantly working on improving our products, and we will definitely take your suggestion into consideration for future updates. If you have any more feedback or suggestions, please don’t hesitate to reach out. Have a great day!
Davin Yap –
Why was I not happy with the Mares Twin Tank Steel Conc. 12L? Firstly, the minor issue with the product is that it may be a bit heavy, making it difficult to carry around sometimes.
Imran Hanafiah –
Thank you for sharing your thoughts on the Mares Twin Tank Steel Conc. 12L, Davin. We’re sorry to hear that it wasn’t up to your expectations. The weight of the product can be a concern for some users, and we appreciate you bringing this to our attention. However, we’d like to offer a potential solution – we have a lightweight version of the product available. Would you like us to look into replacing your product with the lighter version, or would you prefer a refund or store credit? Additionally, we’d love to hear more about what specifically didn’t meet your needs, and how we can improve our products for future users. Your feedback is greatly appreciated and helps us create better products for everyone.