Scubapro MK25 EVO First Stage

The SCUBAPRO MK25 EVO First Stage is a premium, high-performance balanced piston first stage designed for divers who expect effortless breathing performance in all conditions. Combining SCUBAPRO's renowned air-balanced flow-through piston technology with advanced cold-water protection, the MK25 EVO delivers a fast, consistent supply of air whether you're diving shallow or deep, in warm tropical water or the cold waters of the UK.

At the heart of the MK25 EVO is its air-balanced flow-through piston, housed in a durable chrome-plated brass body. This design provides a consistent and effortless airflow that remains largely unaffected by changes in depth, tank pressure or breathing rate. The result is fast air delivery and excellent breathing performance, even when you're working hard underwater.

One of the MK25 EVO's standout features is SCUBAPRO's Extended Thermal Insulating System (XTIS). Designed specifically to improve cold-water performance, XTIS isolates the mechanical components of the first stage from the surrounding cold water. Combined with an insulating coating, insulating bushing, anti-freeze cap and redesigned body and cap threads, the system significantly improves resistance to freezing while maintaining the MK25's high airflow performance.

For divers spending time in cold UK waters, this additional protection can be particularly valuable, helping to maintain reliable regulator performance when water temperatures drop and the risk of freezing becomes a concern.

The MK25 EVO also offers excellent flexibility when configuring your regulator setup. Two opposing high-pressure ports allow the first stage to be positioned either up or down, while five high-flow low-pressure ports on a rotating swivel turret provide plenty of options for routing your regulator hoses, drysuit hose and other accessories. This makes the MK25 EVO suitable for everything from recreational single-cylinder diving to more demanding configurations.

The MK25 EVO is available with either DIN 300 bar or INT 232 bar connections. Despite its impressive performance, the first stage remains relatively compact and lightweight, weighing approximately 572g in DIN configuration or 790g in INT configuration.

Whether you're exploring UK wrecks, heading deeper, travelling abroad or simply want one of the most capable first stages available, the SCUBAPRO MK25 EVO delivers the combination of breathing performance, cold-water protection, reliability and configuration flexibility that demanding divers are looking for.

Why Choose the MK25 EVO?

The MK25 EVO is particularly well suited to divers who want premium performance without compromising versatility. Its air-balanced piston provides effortless airflow, while XTIS cold-water technology adds an extra level of protection for challenging conditions. Add the flexible port configuration and proven SCUBAPRO engineering, and you have a first stage capable of handling everything from everyday recreational diving to more demanding underwater adventures.

• Air-balanced flow-through piston design
• Chrome-plated brass body
• Consistent airflow regardless of depth, tank pressure or breathing rate
• SCUBAPRO XTIS Extended Thermal Insulating System
• Enhanced resistance to freezing
• Anti-freeze protection for cold-water diving
• Insulating spring coating
• Insulating bushing
• Anti-freeze cap
• Redesigned body and cap threads for improved cold-water performance
• Two opposing high-pressure ports
• Five high-flow low-pressure ports
• Rotating swivel turret for flexible hose routing
• DIN 300 bar and INT 232 configurations available
• DIN weight: approximately 572g
• INT weight: approximately 790g
• Suitable for recreational, cold-water and demanding diving