The Tusa R-800 / S-11 Regulator is a second-stage regulator from Tusa – 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 Tioman’s diverse coral gardens or hovering in the blue.
Technical Specifications
| Specification | Details |
| Brand | Tusa |
| Product | R-800 / S-11 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 Tusa R-800 / S-11 Regulator is built to perform across Malaysia’s best underwater destinations. Whether you’re exploring Tioman’s diverse coral gardens, 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 Tusa R-800 / S-11 Regulator delivers smooth, effortless air at any depth – exactly what you want from a second stage.




Leanne Lee –
I love using the Tusa R-800 / S-11 Regulator! It’s lightweight and compact, making it easy to transport underwater. The advanced flow system keeps me breathing smoothly and safely. I highly recommend this product for scuba diving enthusiasts!
Melissa Koh –
Can the Tusa R-800 / S-11 Regulator be used for both recreational and technical diving?
Imran Hanafiah –
Thank you for your question, Melissa. The Tusa R-800 / S-11 Regulator is designed for both recreational and technical diving, making it a versatile option for divers of all levels. The balanced piston first stage provides instant and consistent airflow, while the A.F.S. and venturi adjustment lever ensure safe operation. This regulator features two H.P. and four L.P. ports, allowing for multiple hoses to be attached. We recommend consulting our user manual or speaking with one of our trained staff to determine the best configuration for your specific diving needs.
Kevin Wong –
Does the Tusa R-800 / S-11 Regulator have a DIN or yoke configuration?
Junhao Lo –
Thank you for your question, Kevin! The Tusa R-800 / S-11 Regulator is offered in both DIN and yoke configurations. If you could please provide more details about your preference, such as the type of equipment you’ll be using it with, we’ll be happy to help you determine which one is the best fit for you. Other customers with similar questions may also want to know about our product’s features so please feel free to ask away!
Kavin Lim –
What are the durability tests performed on the Tusa R-800 / S-11 Regulator? Is it compatible with most diving masks and hoses?
Junhao Lo –
Thank you for reaching out to us, Kavin Lim! The Tusa R-800 / S-11 Regulator withstands rigorous durability tests, including freeze, burst, and pressure tests. These tests ensure that the regulator operates reliably and safely even under extreme conditions. As for compatibility, the Tusa R-800 / S-11 Regulator is designed to work seamlessly with most diving masks and hoses. The balanced piston first stage allows for a wide range of compatibility with various equipment. If you’d like more information or have any specific questions, please feel free to ask! We’d be happy to help.
Brian Teo –
What is the recommended maintenance schedule for the Tusa R-800 / S-11 Regulator?
Amanda Lee –
The Tusa R-800 / S-11 Regulator gets a solid 3.5 stars from me. While it’s an excellent product with great performance, the lack of a built-in pressure gauge is a minor annoyance. I’ve had to purchase a separate gauge, which I wish was included in the package.
Gerald Tan –
I’m really impressed with how reliable the Tusa R-800 / S-11 Regulator is! It’s been years since I bought it and it still works perfectly. However, the only thing I wish it had was a built-in pressure gauge.
Kevin Wong –
What kind of maintenance is required for the Tusa R-800 / S-11 Regulator, and what’s the recommended frequency?
Junhao Lo –
Thank you for your question, Kevin. Maintaining the Tusa R-800 / S-11 Regulator is relatively straightforward and essential to its performance and longevity. We recommend cleaning the regulator after each dive, especially after diving in polluted or contaminated water. Additionally, you should check the regulator’s O-rings annually and replace them if necessary. It’s also recommended to send the regulator in for a professional service every 2 years or according to the manufacturer’s guidelines. Frequent servicing will help prevent leaks and ensure the regulator continues to function properly.
Rachel Goh –
The Tusa R-800 / S-11 Regulator has exceeded my expectations in terms of its performance and durability. It’s an excellent investment for any serious scuba diver. The balanced piston first stage provides consistent airflow, making it a great choice for beginners and experienced divers alike.
Lena Tan –
Is the Tusa R-800 / S-11 Regulator suitable for beginners or is it more geared towards advanced divers?
Imran Hanafiah –
Thank you for your question, Lena Tan. The Tusa R-800 / S-11 Regulator is a great choice for divers, but whether it’s suitable for beginners depends on their level of experience and the type of diving they intend to do. This regulator features a balanced piston first stage, which provides consistent airflow. While this is a great feature, it may require some adjustment on the part of the user to get used to. However, the Advanced Flow System (A.F.S) does help to regulate airflow and reduce effort required to breathe. We would recommend this regulator for intermediate to advanced divers who are looking for a reliable and high-performance regulator. For beginners, we would suggest starting with a simpler regulator and building up to this one as their skills and confidence improve.
Eleanor Tan –
The Tusa R-800 / S-11 Regulator exceeded my expectations. I’m extremely happy with its performance in both warm and cold water. The Advanced Flow System (A.F.S) really works as advertised, and the compact design is perfect for my diving gear. I can confidently recommend this product to any diver.
Cecilia Wong –
The Tusa R-800 / S-11 Regulator is a game-changer for any serious scuba diver. The balanced piston first stage provides consistent airflow, making it easy to breathe while diving. I’ve used it in both tropical and cold water settings, and it’s performed flawlessly every time.