All You Need to Know About the Scubapro MK11 EVO/C370 in 2025: Standout Features
The Scubapro MK11 EVO/C370 is all about balance—lightweight, reliable, and efficient. It delivers smooth airflow, smart design, and travel-friendly performance without the bulk of higher-end models. Here’s a closer look at what makes this regulator stand out underwater.
First Stage: MK11 EVO
Balanced diaphragm design
The MK11 EVO uses a balanced diaphragm that delivers consistent airflow at any tank pressure. You’ll get the same easy breathing whether your tank is full or nearly empty.
Improved thermal protection
Scubapro added thermal fins around the spring chamber to improve heat exchange and prevent freezing. This makes it more reliable in cooler water than most compact regulators.
Forged brass body with chrome finish
The body is built from marine-grade brass and finished with corrosion-resistant chrome. It feels sturdy, with the right mix of weight and durability for everyday diving.
Flexible hose routing
You get two high-pressure and four high-flow low-pressure ports positioned for easy hose setup. Routing your alternate air, BCD inflator, or computer hoses is simple and clean.
Easy maintenance access
The MK11 EVO features an external intermediate pressure adjustment, enabling technicians to fine-tune it without requiring full disassembly.
Second Stage: C370
Air-balanced valve
The C370 uses Scubapro’s air-balanced valve system to ensure effortless inhalation at all depths. You’ll notice steady, natural breathing even under heavier workloads.
User-adjustable breathing controls
It features an inhalation adjustment knob and a dive/pre-dive (Venturi) switch. These let you fine-tune airflow and prevent free-flow on the surface.
Compact and travel-ready
The C370 is one of Scubapro’s smallest second stages. Its lightweight, fiberglass-reinforced casing is durable and easy to pack, making it a great choice for frequent travelers.
Low exhalation effort
An updated exhaust tee, taken from Scubapro’s higher-end S620Ti, reduces exhalation resistance by about 10% compared to the previous C350.
Comfortable design
A wide purge button makes clearing easy, and the Hi-Flow mouthpiece feels secure without excessive jaw fatigue.
Real-World Impressions
In the water, the MK11 EVO/C370 feels smooth and stable. Air delivery is consistent, even at 100 feet. It performs well in warm and temperate waters, though it’s not a full cold-water regulator.
Some divers on Reddit note the stock mouthpiece feels a bit firm, but that’s easily fixed with a softer replacement. Servicing is straightforward, and Scubapro’s global dealer network makes finding parts simple, no matter where you dive.
Scubapro MK11 EVO/C370: Manufacturer's Specification
1st Stage Design: | Diaphragm |
1st Stage Type: | Balanced |
Environmentally Sealed | No |
Number of Ports: | 2 High-Pressure (HP), 4 High-Flow Low-Pressure (LP) |
2nd Stage Type: | Balanced |
Adjustable 2nd Stage: | Adjustable inhalation effort, Venturi switch |
Materials: | Chrome-plated brass (1st stage), fiberglass-reinforced technopolymer (2nd stage) |
Weight: | 1st Stage: 528 g (DIN) / 746 g (INT) · 2nd Stage: 171 g · Combined: ≈ 1.08 kg |
Regulator Connection: | Yoke, DIN |
Water Temp Range: | Warm, Temperate, Moderate Cold Water |
Our Rating: Scubapro MK11 EVO/C370 Review
Overall Score
4.3/5
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4.0/5
Comfort & Ergonomics
This setup is compact, well-balanced, and lightweight—ideal for divers who travel often. The Hi-Flow mouthpiece fits comfortably and helps reduce jaw fatigue. The large purge button is easy to use even with gloves, and hose routing is clean and intuitive.
4.5/5
Breathing Performance & Ease of Use
The MK11 EVO/C370 delivers smooth and steady airflow at all depths. The balanced diaphragm first stage keeps performance consistent as tank pressure drops, while the air-balanced second stage minimizes inhalation effort. The adjustable inhalation knob and Venturi switch make it easy to fine-tune airflow to your preference.
4.5/5
Build Quality & Durability
Scubapro’s reputation for solid engineering shows here. The chrome-plated brass body of the MK11 EVO resists corrosion, and the C370’s fiberglass-reinforced housing feels sturdy without being heavy. Internal components are precision-machined for long-term reliability, even with frequent use.
4.0/5
Maintenance & Serviceability
Scubapro’s global network makes servicing straightforward. Service kits are widely available, and the external intermediate pressure adjustment makes fine-tuning easier for technicians. With routine maintenance, this regulator can last many years of consistent diving.
4.5/5
Value for Money
The MK11 EVO/C370 sits in the mid-range price bracket but offers performance that rivals higher-end models. You get balanced breathing, durable materials, and easy servicing—all in a lightweight package. It’s a strong value for recreational divers and frequent travelers who want dependable performance without paying premium prices.
What We Like:
✅ Smooth and Consistent Breathing
The MK11 EVO/C370 provides a steady and effortless breathing experience across different depths. The balanced diaphragm first stage and air-balanced second stage work together to deliver consistent airflow, even as your tank pressure drops. During dives, the transition from shallow to deep feels seamless with no noticeable increase in breathing resistance.✅ Lightweight and Compact
This setup is ideal for divers who travel frequently. The compact first stage and small second stage reduce overall weight, making it easy to pack in carry-on luggage. Despite its size, it doesn’t compromise on performance, which is rare in travel-friendly regulators.✅ Strong Build and Corrosion Resistance
Scubapro built the MK11 EVO from chrome-plated marine brass for durability and corrosion resistance. The C370’s technopolymer housing and stainless steel components add toughness without adding weight. After repeated saltwater dives, users report minimal wear when properly rinsed and maintained.✅ User Adjustability
The C370 offers both an inhalation control knob and a Venturi switch. These let you fine-tune your breathing effort depending on your depth or workload. The controls are responsive and easy to operate, even with gloves.✅ Reliable for Warm to Cold Water
The MK11 EVO’s environmentally sealed design and heat-exchange fins offer added protection in cooler waters. It handles temperate and mild cold-water conditions well, making it suitable for most recreational environments.What We Don't Like:
❌ Not Fully Cold-Water Rated
While it performs well in moderate cold conditions, it’s not a true cold-water regulator like the MK17 or MK25 series. Divers who frequently dive below 50°F (10°C) may want something with full dry sealing.❌ Firm Stock Mouthpiece
Some divers find the stock Hi-Flow mouthpiece a bit stiff for long dives. Replacing it with a softer or custom-fit option can improve comfort during extended sessions.❌ No Swivel Turret
Unlike Scubapro’s higher-end models, the MK11 EVO lacks a swivel turret. Hose routing is still good, but a rotating turret would provide more flexibility for certain setups.❌ Slightly Higher Service Cost
Because Scubapro requires service through authorized dealers to maintain the warranty, annual service can be slightly more expensive compared to generic regulators. However, it ensures parts quality and technician expertise.The Verdict
The Scubapro MK11 EVO/C370 offers an impressive balance of performance, portability, and value. It is designed for recreational divers who want dependable breathing performance without carrying bulky gear or spending on high-end models.
Underwater, it delivers steady and natural airflow at all depths. The balanced first and second stages ensure consistent breathing, while the adjustable controls allow you to fine-tune your comfort. It remains reliable in warm and moderate cold water, making it versatile for most dive locations.
The construction feels solid and durable. The chrome-plated brass first stage and reinforced second stage materials provide excellent resistance to corrosion and wear. With proper maintenance, this regulator will last for years of diving.
Overall, the MK11 EVO/C370 is a great choice for divers who travel often or want a dependable mid-range regulator that performs above its price. It combines Scubapro’s engineering quality with comfort and simplicity in a compact package.
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Scubapro MK11 EVO/C370: FAQ
Frequently Asked Questions
Yes. The MK11 EVO first stage can be paired with any compatible Scubapro second stage, such as the S560 or S600, if you prefer a different breathing profile or additional features.
Scubapro recommends having your regulator inspected annually and fully serviced every two years or after about 100 dives. Regular rinsing in fresh water after each dive helps extend service intervals and maintain performance.
No. The regulator is rated for use with nitrox mixtures up to 40 percent oxygen without additional cleaning. For higher oxygen levels, oxygen-cleaning procedures and compatible O-ring materials are required.
Have you tried the Scubapro MK11 EVO/C370 Regulator? What did you think? Let us know in the comments below! Happy diving!