Technical data

MK25 EVO first stage

• The pneumatically balanced flow-through piston, in a chrome-plated brass body, provides smooth, consistent airflow regardless of depth, tank pressure and breathing rate.
• The Extended Thermal Insulating System - XTIS (patent pending) completely isolates the internal mechanism from the environment, improving cold water resistance by 30% and delaying ice formation in extremely cold water conditions, without compromising performance breathing. Key components of the isolation system are highlighted in blue.
• The new spring-loaded insulator, body insulator bushing, anti-freeze cap, larger body and cap thread combine perfectly with the XTIS system to improve cold water performance.
• Anti-freeze protection significantly increases breathing reliability when diving in extremely cold water.
• Two opposing high pressure outlets allow the first stage to be positioned high or low.
• Five high-flow low-pressure outlets on a rotating turret maximize hose placement options.
• External intermediate pressure adjustment allows engineers to fine-tune performance quickly and easily.
• Available in 3364 psi/232 bar INT or 4350 psi/300 bar DIN configuration.
• The DIN version features a new dual-compound wheel featuring a new ergonomic shape and a soft grip on a sturdy black nylon frame.
• Airflow at 2900 psi/200 bar: (l/min/SCFM): >8500/301.
• Intermediate pressure (psi/bar): 130-142/9.0-9.8.

S600 second stage

• The balanced valve relieves inhalation effort when diving at different depths and delivery pressures.
• The metal valve housing can withstand years of diving in extreme conditions.
• User controls include an inspiratory effort adjustment knob and a "dive-pre dive" lever for adjusting the Venturi effect (VIVA-Venturi InitatedVacuum Assist).
• The Superflow hose features an oversized caliber that allows for greater airflow with each inhalation.
• The ultra-comfortable orthodontic mouthpiece is easy to grip but does not inhibit airflow.
• Airflow at 2900 psi/200 bar: 1850 l/min. - 66 SCFM.
• Maximum supply pressure: 203 psi/14 bar.