Scubapro MK25 EVO/A700 CARBON BT Regulator - REG239 YOKE
The premium MK25 EVO/CARBON BLACK TECH is not only the best-breathing reg in SCUBAPRO's line, it's also the leader in advanced design and materials. The A700 CARBON's main casing is full metal to take advantage of the extremely high heat exchange rate that makes it such a great choice for cold-water diving, and its front cover is handmade out of lightweight and durable carbon fiber. The A700 CARBON is teamed with the MK25 EVO, widely considered the gold standard in first stage performance, and finishing off this premium air delivery system is a DLC (Diamond-Like Carbon) Black Tech coating. Put it all together and you have diving's ultimate muscle reg that looks great, is ultra-durable, and delivers the best breathing performance around.
Features
- Handmade carbon fiber front cover, metal casing and metal valve housing (barrel) make for a rugged second stage able to withstand years of aggressive diving.
- Carbon fiber is extremely lightweight and, unlike metal that can change shape when dropped or struck against a hard object, carbon fiber can resist substantial shocks without damage.
- Metal case construction enables the use of a larger diaphragm inside a compact casing, increasing breathing sensitivity.
- DLC Black Tech coating protects from corrosion and scratches and lends a technical look to the regulator.
- Air balanced second stage smoothes out the inhalation effort when diving at varying depths and supply pressures.
- User controls include a diver-adjustable inhalation effort knob and coaxial Venturi-Initiated Vacuum Assist (VIVA) switch.
- Air balanced piston first stage in a Black Tech-coated brass body delivers consistent and effortless airflow, regardless of depth, tank pressure, or breathing rate.
- With its patented ultra-freeze-resistant Extended Thermal Insulating System (XTIS) the MK25 EVO offers excellent thermal insulation by fully isolating the mechanical elements of the first stage from the cold, all without compromising breathing performance.
- Anti-freeze protection radically increases breathing reliability when diving in the most extreme water temperatures.
- Two opposing high pressure ports allow the first stage to be positioned either up or down.
- Four high-flow and one axial super high-flow low pressure ports on a swivel turret maximize hose routing options.
- External intermediate pressure adjustment enables technicians to fine-tune performance quickly and easily.
What our Experts Think
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Elite airflow performance – MK25 EVO delivers extremely high, consistent gas flow for effortless breathing at any depth or workload.
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Carbon + metal hybrid second stage – A700 Carbon uses a full-metal valve body for thermal stability plus a carbon fiber cover for reduced weight and impact resistance.
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Black Tech DLC coating – Scratch-resistant, corrosion-resistant finish improves durability while giving a premium, technical look.
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Cold-water capable design – XTIS thermal insulation helps isolate internal components and improves resistance to freezing conditions.
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Ultra-smooth breathing feel – Air-balanced second stage ensures stable inhalation effort across depth and tank pressure changes.
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Fully adjustable control system – Inhalation effort knob + Venturi (VIVA) switch lets you fine-tune performance or prevent free-flow at the surface.
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High-end hose routing flexibility – Swivel turret and multiple ports support clean, optimized setups for recreational or technical configurations.
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Premium durability focus – Built for long-term aggressive use, with materials chosen for corrosion resistance, strength, and thermal performance.
Q&A
Q: What is the Scubapro MK25 EVO / A700 CARBON BT Regulator (REG239 YOKE)?
A: It is a flagship, high-performance scuba regulator system combining the MK25 EVO balanced piston first stage with the A700 Carbon Black Tech second stage, designed for ultra-smooth breathing, extreme durability, and all-condition diving performance.
Q: What makes the MK25 EVO first stage special?
A: It delivers extremely high airflow using a balanced flow-through piston design and includes XTIS thermal insulation, which improves cold-water resistance and reduces freeze risk while maintaining stable performance.
Q: What are the benefits of the A700 Carbon BT second stage?
A: It features a full-metal internal valve housing for excellent heat exchange and breathing sensitivity, paired with a carbon fiber front cover for reduced weight, shock resistance, and high durability.
Q: Is it suitable for cold-water diving?
A: Yes. The MK25 EVO’s XTIS system and the A700’s metal construction provide strong freeze resistance and consistent airflow in cold, temperate, and warm conditions.
Q: What does “Carbon BT” mean?
A: “Carbon BT (Black Tech)” refers to the carbon fiber front cover plus a corrosion-resistant black finish (DLC/PVD style coating), improving durability and giving a high-end technical look.
Q: What does YOKE (INT) compatibility mean?
A: It uses the standard clamp-style connection for common recreational tanks, making it widely compatible for travel and dive centers.
Maintenance Tips
Damage 
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