Scubapro MK17 EVO2/S620Ti Regulator Set - REG459 YOKE

Scubapro MK17 EVO2/S620Ti Regulator Set - REG459 YOKE

For compact comfortable breathing performance in cold or silty water, the MK17 EVO 2/S620 Ti regulator system simply can’t be beat. The new MK17 EVO 2 is a sealed diaphragm first stage with a dry chamber based on a twin spring layout and two HP ports at 15-degree angle to make hose routing easier. Small and lightweight, the S620 Ti delivers excellent performance providing effortless airflow under all dive conditions.

Features

• Sealed balanced diaphragm design makes for the ultimate compact first stage for cold water or contaminated diving conditions.

• Air-balanced diaphragm delivers consistent and effortless airflow, regardless of depth, tank pressure, or breathing rate.

• Dry chamber is completely environmentally sealed with a dual diaphragm system that keeps out contaminated water. The rib is designed to enhance heat exchange, making the first stage cold water-proof.

• Two opposing high-pressure ports positioned on a 15º angle allow the first stage to be positioned either up or down, plus provide an optimal hose/transmitter layout.

• S620Ti second stage's air balanced valve smoothes out the inhalation effort at varying depths and supply pressures.

• Rugged reinforced technopolymer case and front cover with stainless steel frame looks good plus is able to withstand years of aggressive diving.

• Full titanium barrel is rugged, anti-corrosion and lightweight for long-term reliability.

• Large diaphragm fits inside a more compact second stage casing for maximum breathing sensitivity.

• User controls include an easy-grip diver-adjustable inhalation effort knob and Venturi-Initiated Vacuum Assist (VIVA) lever.

• Exclusive compact Hi-Flow mouthpiece is mounted on an enlarged mouthpiece pipe to improve airflow as well as mouth comfort.

What our Experts Think

• Premium cold-water regulator system (2026 edition) built for serious divers who demand top-tier breathing performance and reliability in all conditions.
• MK17 EVO2 sealed diaphragm first stage protects internal components from sand, silt, and freezing water while delivering stable airflow at depth.
• S620Ti second stage with titanium inlet tube ensures ultra-smooth, low-effort breathing with excellent sensitivity and long-term corrosion resistance.
• Consistently effortless airflow thanks to air-balanced design, keeping inhalation smooth regardless of depth, tank pressure, or workload.
• Fully adjustable breathing controls (inhalation + VIVA switch) allow precise tuning for comfort, efficiency, and free-flow prevention in changing conditions.
• Compact, travel-friendly first stage design with optimized port layout for clean hose routing and technical-ready configurations.
• Ideal all-round premium setup for cold-water, wreck, and advanced recreational diving where reliability and smooth performance matter most.

Q&A

Maintenance Tips