Breathing in cold or sediment-rich water? It doesn’t get more comfortable than with the compact MK17 EVO 2/S620 Ti regulator. The new MK17 EVO 2 features a diaphragm first stage with a fully sealed dry chamber based on two springs and two high-pressure ports set at a 15° angle for optimal hose or transmitter connection. The small and lightweight S620 Ti second stage breathes superbly — air is delivered effortlessly under all diving conditions.

The compact, balanced diaphragm first stage is fully sealed, making it ideal for diving in cold or contaminated water. Its air-balanced diaphragm ensures consistent, effortless airflow regardless of depth, tank pressure, or breathing rate.

The dry chamber is hermetically sealed — the diaphragm keeps contaminated water out. Ribbing improves heat exchange, making the first stage highly resistant to cold water.

Two opposing high-pressure ports at a 15° angle allow the first stage to be mounted upright or inverted with optimal hose/transmitter routing.

The air-balanced valve provides optimal breathing comfort at varying depths and tank pressures.

The robust second stage housing of reinforced technopolymer with a titanium insert ensures long-term durability even under extreme diving conditions.

The titanium air inlet tube is strong, corrosion-resistant, lightweight, and built to last.

The large diaphragm fits in a compact housing and responds immediately upon inhalation.

The second stage features an easy-to-use control knob and valve, allowing the diver to adjust inhalation effort and VIVA (Venturi-Initiated Vacuum Assist).

The extremely comfortable, orthodontically shaped mouthpiece sits well in the mouth and does not restrict airflow.

CE-certified for all diving conditions, including extreme cold water, in compliance with the current European standard EN250A.

Specifications:

• 2nd stage design: Balanced

• 1st stage type: Diaphragm

• 2nd stage series: S-Series

• Water temperature: Warm, Cold, Temperate

• Connector type: DIN

• Nitrox mix: Up to 40%

• High-pressure ports: 2

• Low-pressure ports: 4

• 1st stage material: Chrome-plated brass

• 2nd stage material: Reinforced technopolymer housing, Titanium components, Metal components

• Adjustable 2nd stage: Yes

• 2nd stage valve housing: Titanium