Scubapro MK25 EVO DIN 300/S620 Ti Regulator - REG359 DIN

Scubapro MK25 EVO DIN 300/S620 Ti Regulator - REG359 DIN

SCUBAPRO's top regulator technology is on display in this high-tech, ultralight reg system. The MK25T EVO is machined from a solid block of titanium which will not corrode, even in concentrated saltwater conditions, promising years of trouble-free use. It offers excellent resistance to freezing, superb inhalation sensitivity and instant delivery of air on demand. The new S620 X-Ti embraces the best features of SCUBAPRO's renowned S600 in an upgraded, state-of-the-art design. Smaller and lighter but using the same-sized diaphragm, the S620 X-Ti delivers effortless airflow under all dive conditions. The titanium inlet tube is super-efficient, the large purge button improves water circulation and the new exhaust tee enhances overall performance."

Features

• High Performance, Reliable Scubapro Technology & Value
• Superior Ultra-High Airflow System
• Maximum Performance in All-Temperatures & Conditions
• 3/8 Threaded Low-Pressure Hose
• More Air On-Each Inhalation
• Nitrox Compatible Up to 40% Oxygen
• Scubapro Mark 25 EVO Regulator DIN, First Stage:
• Superior Cold-Water Performance Equal to Scubapro's MK17 First Stage
• EVO: Means Evolution, Revolutionizing Existing Technologies to Higher Performance
• High Performance, Reliable Scubapro Technology and Value
• Superior Ultra-High Airflow System, Maximum Performance in All-Temperatures & Conditions
• Ultra-Stable Intermediate Pressure
• High Performance in Warm and Cold Water to 3336 psi (230 bars)
• Meets New EN250-2014 Requirements
• CE Approved for 3360 psi (230 bars) in Cold Water Conditions
• Increased Cold Water Efficiency by 30% Over Previous MK25 Regulator
• Air-Balanced Flow-Through Piston Design
• Balanced Composite/Stainless Steel Flow-Thru-Piston
• HP Ports: Two 7/16" Threaded
• LP High Flow (HF) Ports: Five 3/8" Threaded
• Scubapro S620 Ti Second Stage Regulator:
• Air-Balanced Second Stage Valve
• Smooths-Out Inhalation Effort at Varying Depths & Supply Pressures
• Rugged Reinforced Techno-Polymer Case & Front Cover
• Stainless Steel Frame Looks Good
• Plus, Design Able to Withstand Years of Aggressive Diving
• Full Titanium Barrel: Rugged, Anti-Corrosion & Lightweight for Long-Term Reliability
• Large Diaphragm Fits Inside More Compact Casing for Maximum Breathing Sensitivity
• LP Ports Mounted on Swivel Turret Cap for Maximum Hose Routing

What our Experts Think

• Elite airflow performance – MK25 EVO piston first stage delivers extremely high gas flow with instant response, even under heavy demand or deep dives.
• Cold-water ready design – Advanced XTIS thermal insulation improves resistance to freezing and maintains stable performance in harsh environments.
• Titanium second stage advantage – S620 Ti reduces weight while maintaining strength, corrosion resistance, and ultra-smooth inhalation.
• Effortless breathing feel – Air-balanced valve design minimizes inhalation resistance for natural, fatigue-free breathing at any depth.
• Highly configurable hose routing – Swivel turret and multiple LP/HP ports allow clean, flexible setups for different diving styles.
• Travel-friendly premium build – Despite top-end performance, the titanium components help keep overall weight down for easier transport.
• Adjustable comfort controls – Fine-tune inhalation effort and Venturi assistance for smooth performance in varying conditions.

Q&A

Maintenance Tips

• Rinse thoroughly with fresh water after every dive, including flushing the S620 Ti second stage and all hose ports while keeping the DIN first stage dust cap securely in place.
• Press and lightly cycle the purge and adjustment knobs during rinsing to remove salt, sand, and prevent internal sticking.
• Always rinse only when pressurized or properly protected to avoid water entering the first stage DIN inlet.
• Drain completely and air-dry in a shaded, ventilated area away from direct sunlight or heat.
• Store loosely coiled in a cool, dry place, avoiding kinks in hoses and stress on fittings.
• Inspect hoses, mouthpiece, DIN O-rings, purge cover, and titanium components for wear, salt buildup, or cracking before each dive.
• Avoid sand, oils, solvents, and chemical exposure that can damage seals and valve performance.
• Have the MK25 EVO first stage and S620 Ti serviced regularly by an authorized technician (typically annually or per usage intensity).