MK25AF/C300 System
The MK25/C300 has Scubapro ultimate balanced piston first stage paired with a reliable recreational second stage, making this a remarkable all-rounder system.

MK25AF Ballanced Piston First Stage:
MK25 from Scubapro is a regulator system features a high flow first stage with an air balanced high performance second stage chosen by military divers for its durability, simplicity, and reliability.

• An unfailing performance, due to patented design.
  The MK25 first stage can accept all types of Scubapro second stages, and will be your favorite for all diving experiences.
• Machined marine grade chrome plated brass body.
  Excellent resistance to corrosion, long lasting, and excellent value for its price.
• Patented over balanced composite/stainless steel piston. Faster dynamic response and extra high flow, ultra stable intermediate pressure at all tank pressure.
• Thermal Insulating System (TIS) on piston and spring.
  Cold water resistant. Exceeds CE cold water diving requirements.
• Externally adjustable intermediate pressure (patent pending).
  Easy and fast adjustment by authorized technician.
• 5 High flow low pressure swivel ports.
  Ergonomic distribution of the hoses for less jaw fatigue and full option for octopus and accessories.
• Dual high pressure ports.
  Console or pressure gauge can be mounted either right or left hand.
• Available in 232 bar yoke or DIN system.
  Versatile use depending on geographical region.
• New wound conical single stainless steel wire filter.
  Improved flow characteristics for absolute safety will prevent clogged filters from exploding.
• Enlarged water balancing chamber holes.
  For cold water diving, improves heat transfer and increases resistance to freezing. Exceeds CE cold water norms at 300 bars.
• Also available in Titanium version
• CE-Approved

C300 Second Stage:
Scubapro's compact C300 Systems offer uncompromising breathing performance for avid recreational divers. The C300 second stage is lightweight with anti-scratch cover. It allows all the adjustment options of a high-end regulator while remaining a midrange system.

• The Optimal Flow Design valve (OFD)
   For reliable and high air flow, improving work of breathing compared to a downstream valve.
• Diver-adjustable coaxial VIVA
  For powerful inhalation assistance and prevention of free-flow.
• Diver adjustable inhalation control
  For personalized breathing effort.
• Redesigned mouthpiece tube
  Allows better exhaust airflow. 
• Precision molded carbon fibre and technopolymer valve housing and components
  Low friction, light weight, corrosion and cold water resistant.
• Light weight orthodontically designed mouthpiece
  Comfortable and reduces jaw fatigue and gum irritation.
• Compact design
  Light weight for comfort and travel.
• Available
  With either 232bar INT or 300bar DIN first stages.
• CE-Approved

Scubapro introduces 2 new second stage regulators. C300 and C200 feature the new Optimized Flow Design valve for outstanding performances in a compact housing. This 3D movie shows the technical details of the valve.