The MK17 EVO 2/C370 is a compact, lightweight regulator designed for exploring dive sites around the world. The new MK17 EVO 2 is a diaphragm first stage with a fully sealed dry chamber, featuring two opposing high-pressure ports set at a 15° angle for optimal hose or transmitter routing. The compact C370 second stage includes an inhalation effort adjustment knob, a small coaxial Dive/Pre-Dive lever, and a large purge button that’s easy to operate even with thick gloves.

The balanced diaphragm first stage is completely sealed, making it ideal for cold or contaminated water. Its air-balanced design ensures consistent, effortless airflow regardless of depth, tank pressure, or breathing rate. The dry chamber keeps contaminants out, while ribbed surfaces improve heat exchange for excellent cold-water resistance. Two opposing high-pressure ports at 15° allow both upright and inverted mounting options.

The air-balanced second stage provides smooth breathing at any depth or tank pressure. Its compact, reinforced fiberglass nylon housing and low-profile exhaust tee save space in your dive bag. Divers can fine-tune inhalation effort and switch between Dive and Pre-Dive modes. The large purge button is glove-friendly, the Superflow hose has an extra-wide bore to deliver more air with every breath, and the compact Hi-Flow mouthpiece improves airflow while fitting comfortably from large to small mouths.

CE-certified for all diving conditions, including extreme cold water, in compliance with EN250A standards.

Specifications:

• 2nd stage design: Balanced

• 1st stage type: Diaphragm

• 2nd stage series: C-Series

• Water temperature: Warm, Cold, Temperate

• Connector type: INT

• 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

• Adjustable 2nd stage: Yes

• 2nd stage valve housing: Technopolymer