Apeks XL4+ Regulator

By Apeks | Part # RG124119 | Ultra-Lightweight Cold-Water Regulator

Engineered specifically for divers who want peak cold-water performance without carrying unnecessary bulk, the Apeks XL4+ Regulator (Part # RG124119) is an exceptionally lightweight, high-performance regulator system. It is a favorite among technical stage divers, cold-water explorers, and travel divers who refuse to compromise on breathing performance.

Built around an overbalanced diaphragm first stage with a forged heat exchanger and environmental dry seal, the XL4+ prevents internal ice build-up in freezing Pacific Northwest conditions. The upgraded XL4+ second stage features two high-pressure ports for transmitters and gauges, a sleek white finish, and an ergonomic Venturi lever that reduces jaw fatigue on long dives.

Key Performance Features

• Compact & Ultra-Lightweight: Drastically reduces jaw fatigue and travel luggage weight while delivering full technical cold-water capability.
• Overbalanced Diaphragm First Stage: Working pressure increases faster than depth for superior, effortless air delivery at deep depths.
• Environmentally Sealed Dry Chamber: Completely isolates internal mechanism from water, silt, and ice formation.
• 2 HP & 4 LP Ports: Dual high-pressure ports accommodate wireless tank transmitters alongside analogue SPGs.
• Pneumatically Balanced Second Stage: Smooth, effortless breathing with an easy-grip Venturi switch to eliminate free-flow at the surface.
• Nylon Braided Flex Hose: Cold-water rated flexible braided hose provides freedom of movement without pulling on the mouthpiece.
• Comfobite Mouthpiece: Signature Apeks bridge tab rests comfortably across the upper palate without tight biting.

Technical Specifications