Apeks XL4+ 1st Stage Dive Regulator

Discover the Apeks XL4+: compact, lightweight, and ideal for all diving environments, including cold water. Say goodbye to jaw fatigue and hello to unparalleled performance. Order now and dive deeper with confidence.

• Compact machined first stage based on the expedition-tested Apeks DS4 platform.
• Breakthrough, innovative over-moulded first-stage endcap and environmental diaphragm help prevent ice buildup that can cause first stage free flow in extreme circumstances. Also protects the first stage from impact damage.
• Large surface area heat exchanger diaphragm clamp helps increase the gas temperature inside the first stage, resulting in improved cold water performance.
• Unique over-balanced diaphragm design – as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a faster rate than ambient. This results in superior performance at depth.
• Equipped with 2 HP ports and 4 MP ports for versatile equipment configuration.

• Connections: Yoke and DIN available
• Type of first stage: Over-balanced diaphragm design, environmentally sealed
• Body Type: One-piece machined body
• Number of HP ports: 2 (7/16" UNF)
• Number of MP ports: 4 (3/8" UNF)
• Weight:
  • DIN – 905g (2 lb)
  • Yoke – 1041g (2.3 lb)
• Environmental Dry Kit: Standard
• First stage exterior: Satin
• Cold water use: Yes
• Type of second stage: Pneumatically balanced
• Opening Effort Control Knob: No
• Integrated Venturi Lever: Yes
• Mouthpiece: Comfo-bite™
• Exhaust tee: Standard, one set
• Heat Exchanger for freezing resistance: Yes
• Hose type: Braided Flexi-hose
• Overall work of breathing (WOB) scores: Avg. 0.90 joules/liter