Description

Mares 28XR DIN 1st Stage Regulator: The Heart of Your Technical Diving System
Discover the pinnacle of reliability and performance with the Mares 28XR DIN 1st Stage, a regulator engineered from the ground up for the most demanding technical and recreational divers. Designed as a core component of the Mares XR (Extended Range) line, this first stage is the definitive choice for divers who venture into challenging overhead environments, deep waters, and extreme cold. It provides the unwavering breathing performance and configuration flexibility needed to explore with absolute confidence.
The 28XR is built around a philosophy of uncompromising durability and safety. Its balanced diaphragm design ensures a consistent, effortless flow of air regardless of depth or tank pressure, reducing breathing effort and conserving your energy. This is the ultimate first stage for any advanced diving application, from twinset and sidemount configurations to stage and deco bottles.
Key Benefits for the Serious Diver:
* Unmatched Reliability & Protection: Featuring Mares´ exclusive AST (Auto Sealing Technology), the 28XR automatically seals the inlet when not connected to a cylinder valve. This ingenious system prevents any water or contaminants from entering the delicate internal mechanism, drastically reducing the risk of corrosion and performance degradation, and ensuring your regulator is always ready for the next dive.
* Superior Breathing Performance: The integrated DFC system minimizes the intermediate pressure drop that occurs during inhalation. The result is exceptionally stable and smooth breathing, even at extreme depths or during high-demand situations, providing a natural breathing experience that feels effortless.
* Ultimate Configuration Flexibility: Purpose-built for technical diving, the 28XR boasts an intelligent port layout. It features 5 low-pressure (LP) ports, including one vertical/axial port, and 4 radial ports. This design is a technician´s dream, allowing for perfect, streamlined hose routing for any setup—be it backmount twinsets, sidemount, or single-tank recreational diving with a redundant air source. The two angled high-pressure (HP) ports ensure your SPG or transmitter is always positioned for optimal readability.
* Engineered for Extreme Conditions: The robust, all-metal body provides superior thermal conductivity, making the Mares 28XR an outstanding performer in cold water. This design, combined with its internal engineering, helps to significantly reduce the risk of freezing in the most frigid diving environments, meeting rigorous EN250 standards for cold water performance.
Main Features:
* High-performance balanced diaphragm first stage.
* Equipped with innovative Auto Sealing Technology (AST).
* Optimized for extreme cold water diving.
* Features 2 HP ports (7/16” UNF) and 5 LP ports (3/8” UNF) for versatile hose routing.
* Includes a dedicated vertical low-pressure port.
* Exclusive DFC system on the main low-pressure port.
* Secure and robust 300 bar DIN connection.
Technical Specifications:
* First Stage: Balanced Diaphragm
* Connection: DIN 300 bar
* Technologies: AST (Auto Sealing Technology), DFC
* High-Pressure Ports (HP): 2 (7/16” UNF)
* Low-Pressure Ports (LP): 5 (3/8” UNF)
* Weight (DIN): 790g