Description
MK25 EVO BLACK TECH First Stage:
- Extremely scratch and corrosion resistant, the Black Tech coating protects and lends a technical look to the first stage.
- Air-balanced flow-through piston design delivers constant and effortless airflow unaffected by depth, tank pressure, or breathing rate.
- Patent-pending XTIS (Extended Thermal Insulating System) fully isolates the mechanical elements from the cold, increasing freezing resistance 30 percent over the current MK25 without compromising breathing performance.
- New spring insulating coating, body insulating bushing (non-metal cylindrical interface separating metal parts from water), anti-freeze cap, bigger body and cap thread all work in concert with the XTIS to improve cold-water performance.
- Anti-freeze protection radically increases breathing reliability when diving in the most extreme water temperatures.
- Two opposite high pressure ports allow you to position the first stage either pointing up or down. This lets you run your gauges either on your right or left side plus increases the freedom of movement for head and neck.
- Five high-flow low pressure ports on a swivel turret maximize hose routing options (high flow ports deliver about 15 percent more air than conventional LP ports).
- External intermediate pressure adjustment enables technicians to fine-tune performance quickly and easily without the need for disassembly.
- Available in either 3364psi/232bar INT or 4350psi/300bar DIN configurations.
- Weight: INT 232 (oz/g): 29.1/825; DIN 300 (oz/g): 20.9/592.
- Airflow at 2900psi (l/min/SCFM): >8500/301.
- Intermediate pressure (psi/bar): 130-142/9-9.8.
S600 BLACK TECH Second Stage:
- Extremely scratch and corrosion resistant, the Black Tech coating protects and lends a technical look to the first stage.
- Full metal valve housing is able to withstand years of aggressive diving.
- Air-balanced valve smoothes out the inhalation effort when diving at varying depths and supply pressures.
- User controls include a diver-adjustable inhalation effort knob and Venturi-Initiated Vacuum Assist (VIVA) dive/pre-dive switch.
- Super-flow hose features an oversized bore (larger inside hose diameter) that allows more air to flow on each inhalation.
- Ultra-comfortable orthodontic mouthpiece is easy to grip yet doesn’t inhibit airflow.
- Weight: 6.8oz/193g.
- Airflow at 2900psi: 1850 l/min – 66 SCFM.
- Maximum low pressure: 203psi/14bar.