Automation set XL4+ STAGE3

Highly reliable and powerful regulator designed for demanding dives, including cold water and deeper depths. It combines a compact, expedition-proven first stage with a lightweight and comfortable second stage for maximum breathing performance and comfort.

First Stage

• A compact machined first stage based on the expedition-proven Apeks DS4
• Innovative overmoulded end cap and environmental membrane help prevent ice formation and spontaneous flow in extreme conditions
• Protection of the first stage against impact and mechanical damage
• Large area membrane clamp acts as a heat exchanger and increases gas temperature inside the first stage
• Excellent cold water performance
• Unique overpressure balanced membrane design - medium pressure increases with depth faster than ambient pressure
• Excellent breathing performance even at great depths
• 2 high pressure (HP) ports and 4 medium pressure (MP) ports

Second stage

• Compact and lightweight design reduces jaw fatigue on long dives
• Large heat exchanger improves cold water performance and freeze resistance
• High performance pneumatically balanced lever operated valve
• Large, rubberized and self-cleaning drain button with infinitely variable control
• Ergonomic Venturi lever - easily accessible even with gloves
• Flexible braided nylon hose with better cold water behavior than traditional rubber hose
• Standard metal hose connection for easy compatibility
• Nest for Comfo-Bite with unique bridge - holds in place without the need for a strong bite
• Packable mouthpiece clasp for easy replacement even in the field
• Low and flexible exhalation deflector for effective bubble evacuation
• UV inhibitors protect white parts from yellowing