A totally evolved classic downstream piston first stage, now more of a work-horse than ever. With increased breathing sensitivity and better airflow, freezing resistance is dramatically increased. Check out the new MK2 EVO!

THE CONCEPT

• New XTIS (Extended Thermal Insulating System) with mechanism fully insulated from the environment
• Increasing freezing resistance by 50%
• Airflow increased by 15%
• Larger piston (1.6mm) for better breathing performance and sensitivity, yet the overall body size, reduced by 3,5mm, results in a more compact first stage
• Removable orifice allows easier maintenance and longer regulator life
• Meets new EN250-2014 standards requirements
• Modern design
• Key insulation system components visible in blue
• New INT screw including metal logo

TECHNICAL FEATURES

• Removable orifice
• New spring isolating coating
• New body isolation bushing
• Bigger body and cap thread
• Larger opening on the cap

R105 Second Stage

• Classic downstream valve comes with a dive/pre-dive VIVA switch to control free
  flows.
•  Metal valve housing is built rugged and increases overall reliability.
•  Super-flow hose features an oversized bore that allows more air to flow on each inhalation.
• Compact Hi-Flow mouthpiece improves airflow as well as mouth comfort, fitting allmouth sizes, from largest to smallest.
• CE certified according the latest EN250A European Standards for all diving
  conditions, including extreme cold water.
• Weight (without mouthpiece): 5.5oz/156 g.
• Airflow at 2900psi/200bar: 1200 l/min - 42 SCFM.