Scubapro MK17 EVO2/C370 Regulator Set - REG455 YOKE
With the MK17 EVO 2/C370 you have a compact and lightweight regulator system ready to explore dive locales the world over. 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. The compact C370 offers convenient user controls including a diver-adjustable inhalation effort knob, a coaxial dive/pre-dive lever and a large, easy-to-activate purge button.
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 15ΒΊ angle allow the first stage to be positioned either up or down, plus provide an optimal hose/transmitter layout.
- S600 second stage's air balanced valve smoothes out the inhalation effort at varying depths and supply pressures.
- Rugged reinforced technopolymer second stage case and front cover with stainless steel frame looks good plus is extremely durable.
- Metal valve housing (barrel) is able to withstand years of aggressive diving.
- User controls include a diver-adjustable inhalation effort knob and Venturi-Initiated Vacuum Assist (VIVA) dive/pre-dive switch.
- Super-flow hose features an oversized bore (larger inside hose diameter) that allows more air to flow on each inhalation.
- Ultra-comfortable orthodontic mouthpiece is easy to grip yet doesn't inhibit airflow.
What our Experts Think
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Cold-water ready & environmentally sealed β MK17 EVO2 uses a dry, sealed diaphragm design that keeps contaminants out and improves freeze resistance in cold or silty water conditions.
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Stable, balanced airflow β Delivers consistent gas flow regardless of depth or tank pressure for predictable breathing performance.
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Compact, travel-friendly build β New forged-body design makes it smaller and lighter than previous MK17 versions, ideal for divers who travel frequently.
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Easy hose routing β Angled HP ports and multiple LP ports allow clean, flexible configuration for gauges, octo, and inflator setup.
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Simple, durable second stage β The C370 offers adjustable inhalation effort and a dive/pre-dive switch while keeping a rugged, lightweight construction.
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Good breathing comfort for its class β Air-balanced second stage design reduces effort and improves comfort across varying depths.
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Great βdo-it-allβ recreational system β Commonly chosen as a reliable all-rounder for travel, quarry, and recreational diving in mixed conditions.
Q&A
Maintenance Tips
- Rinse thoroughly with fresh water after every dive, keeping the yoke dust cap securely fitted to prevent water entering the MK17 EVO2 first stage.
- Lightly operate the purge button and Venturi (VIVA) lever on the C370 during rinsing to clear salt and sand from moving parts and prevent sticking.
- Do not allow water into the first stage inlet; always rinse only when properly sealed/protected.
- Allow the regulator to air dry completely in a shaded, ventilated area away from heat and direct sunlight.
- Store hoses loosely coiled to avoid kinks and stress on fittings and swivel points.
- Inspect hoses, mouthpiece, yoke O-ring, filter area, and second stage controls regularly for wear, corrosion, or cracks before each dive.
- Avoid sand, oils, solvents, chlorine, and harsh chemicals that can damage seals and internal components.
- Have the MK17 EVO2 and C370 professionally serviced at least annually or per manufacturer schedule (or ~100 dives in heavy use).
Damage 
Loss 
Theft 
