Versatile, high-performance regulator for all conditions.
The MK25 EVO with the S620 Ti is engineered for divers seeking one reliable regulator for all environments—from warm reefs to cold-water wrecks. It combines thermal insulation, titanium components, and advanced breathing controls for ultimate performance and comfort.
Key Benefits
- Cold-water performance The XTIS insulation reduces the risk of freezing for dependable breathing in cold conditions.
- Adaptive breathing support Venturi-Initiated Vacuum Assist (VIVA) smooths inhalation by creating a vacuum effect that reduces breathing effort. The lever lets divers switch between “Dive” for effortless airflow and “Pre-Dive” to minimize free-flows at the surface.
- Light and durable Titanium second stage keeps weight down in your mouth, minimizing jaw fatigue during long dives.
Internal Engineering & Materials
- Thermally insulated piston first stage (XTIS) Keeps internal parts warmer, helping prevent freeze-ups.
- Titanium barrel in second stage Lightweight, corrosion-resistant, and designed for long-term durability.
- Pneumatically balanced valve Ensures consistent airflow regardless of depth or tank pressure.
- Super-flow hose & optimized exhaust tee Enhance air delivery and bubble dispersion for clear vision.
Key Specifications
- First Stage Type Balanced piston with XTIS thermal insulation
- Material Chrome-brass with titanium second stage components
- Adjustability Inhalation effort knob + VIVA lever (Dive / Pre-Dive)
- Total Weight ~2.12 lb
- Nitrox Compatibility Safe for use with up to 40% O2 out of the box; oxygen cleaning required for higher blends
- Service Interval 24 months or 100 dives
- Warranty Limited lifetime (when purchased from an authorized dealer)
The MK25 EVO / S620 Ti delivers thermal protection, adaptive breathing dynamics through VIVA, and titanium resilience—making it a versatile choice for divers who want premium performance across all conditions.
