SCUBAPRO MK25 S555 Nitrox is the choice for advanced and passionate recreational divers who require the top performance of a balanced piston first stage coupled with an air-balanced second stage.

MK25 S555 Nitrox regulator systems
A powerful all-rounder, S555 combined with MK25 is the ideal choice for a diver wanting a high performance yet simple to operate system, remarkably durable and reliable. S555 is a compact and lightweight air balanced second stage marrying advanced breathing performance with a captivating design. It increases fun and relaxation on every dive, because it initiates air flow effortlessly and instantly on demand, independent of the tank pressure. As with all the X and S series second stages, S555 features a super-flow hose for smooth air delivery

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 200bar M26 DIN system.
• 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.

S555 Second Stage
A powerful all rounder, an air balanced high performance second stage. The ideal choice for a diver wanting a high performance yet simple to operate second stage remarkably durable and reliable in cold water. The redesigned look for 2006 also includes technical iprovements, a new diaphragm design for optimized performance and reduced maintenance requirements. Air Balanced flow valve. Increases safety, fun and relaxation on every dive, because it initiates airflow effortlessly and instantly on demand, independent of the cylinder pressure. . .

• Air balanced linear flow valve
• Precision moulded lightweight components
• Anti Freeze materials
  Improved corrosion resistance and cold water performance.
• Compact design and leightweight materials.
• Diver adjustable VIVA
• High flow exhaust valve
• Lightweight orthodontically designed mouthpiece
• Big soft purge and oversized controls
  Green or Yellow coulor

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