ScubaPro MK2 EVO 1st Stage Regulator - REG267 DIN
The Mark 2 EVO DIN is the best example of bulletproof reliability and trouble-free, minimum maintenance regulators. The classic downstream piston configuration is the simplest mechanism that exists to control the pressure drop from a tank to feed the second stage. The classic downstream valve is the first choice of diving centers and rental facilities worldwide for warm and moderate water temperatures.
Features
- Flow-By Piston Design
- Marine Grade Chromed Brass Body and Components
- Compact and Lightweight
- Weight: 24.9 oz. (706 g)
- 4 LP Ports
- 1 HP Port
- Fail-Safe Downstream Valve
- EVO: Means Evolution, Revolutionizing Existing Technologies to Higher Performance
- High Performance in Warm and Cold Water
- Meets New EN250-2014 Requirements
- CE Approved for 3360psi (230 bars) in Cold Water Conditions
- Increased Cold Water Efficiency by 50% Over Previous MK2 Regulator
What our Experts Think
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Extremely reliable design – Classic downstream piston mechanism is mechanically simple, reducing failure points and making it one of the most trusted first stages in diving.
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Improved cold-water protection (EVO system) – XTIS thermal insulation increases freeze resistance by up to ~50% compared to earlier MK2 models, improving safety in colder conditions.
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Consistent airflow delivery – Larger piston design improves air delivery and breathing response while maintaining simplicity and stability.
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Compact and lightweight build – Chrome-plated brass construction keeps it durable yet relatively light for travel or training setups.
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Simple, easy maintenance – Fewer internal parts make servicing straightforward and cost-effective, ideal for frequent use environments.
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Practical port layout – 4 low-pressure ports and 1 high-pressure port allow standard recreational configurations without unnecessary complexity.
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Best-value Scubapro first stage – Often chosen as a dependable entry-level or backup regulator that still meets modern cold-water standards (EN250-2014).
Q&A
Q: What is the Scubapro MK2 EVO DIN 300 First Stage (REG267)?
A: It is a simple, rugged, downstream piston first stage designed for maximum reliability, easy maintenance, and consistent air delivery—commonly used in training, rental, and backup regulator setups.
Q: What makes the MK2 EVO different from higher-end first stages?
A: Unlike balanced piston or diaphragm models, it uses a classic downstream piston design, prioritizing durability and simplicity over high-end tuning and complexity.
Q: Is it suitable for cold-water diving?
A: Yes. It includes Scubapro’s XTIS thermal insulation system, improving freeze resistance by around 50% compared to previous MK2 models, making it suitable for cold-water conditions.
Q: What ports does it have?
A: It typically includes 1 high-pressure port and 4 low-pressure ports, allowing standard single-tank recreational regulator setups.
Q: What is it best used for?
A: It is ideal for entry-level divers, dive schools, rental fleets, and as a dependable backup or travel first stage where simplicity and reliability matter most.
Q: Why do divers choose the MK2 EVO over more advanced first stages?
A: Because it is extremely robust, low-maintenance, cost-effective, and proven to perform consistently even under heavy use conditions.
Maintenance Tips
- Rinse thoroughly with fresh water after every dive, including the DIN inlet area (with dust cap secured) and all hose ports to remove salt and sand buildup.
- Do not press the purge button while rinsing the second stage; instead, gently rinse externally to avoid water entering the system.
- Lightly cycle any second stages connected (purge briefly, if pressurized) to clear salt from moving parts and diaphragm areas.
- Allow the regulator to air-dry completely in a shaded, ventilated area before storage to prevent corrosion and moisture damage.
- Store hoses loosely coiled in a cool, dry place away from heat, UV exposure, and ozone sources.
- Inspect DIN O-ring, filter area, hoses, and ports regularly for wear, corrosion, or cracks before each dive.
- Avoid sand, oils, solvents, chlorine, and harsh chemicals that can degrade seals and internal components.
- Schedule annual servicing (or ~100 dives, whichever comes first) at an authorized technician to maintain safe intermediate pressure and performance.
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