Apeks XL4 Ocea Octopus 2nd Stage

Apeks XL4 Ocea Octopus 2nd Stage is a compact, eco-focused octopus that pairs dependable breathing performance with a lower-impact build using recycled and plant-based components. This second stage is designed to work as the matching alternate air source for the Ocea regulator, keeping hose routing and use straightforward. Lightweight construction and a comfort-oriented mouthpiece help reduce jaw strain on longer dives. Practical controls like a clearly shaped purge button and an easy-to-locate Venturi lever support smooth operation underwater.

• Compact, eco-focused second stage octopus designed to match the Ocea regulator
• Pneumatically balanced valve design for consistent breathing performance
• Lightweight, compact body that helps reduce jaw fatigue on longer dives
• Large overmolded purge button that self-flushes and is easy to control
• Ergonomic Venturi lever that is quick to find and simple to operate
• Braided flexi-hose designed for better cold-water performance than standard rubber hoses
• Standard metal hose connection for easy interchangeability with compatible setups
• Comfo-bite mouthpiece with an upper-palate bridge that stays put with less bite pressure
• Reusable mouthpiece clip for easier mouthpiece swaps at the dive site
• Rubber outlet T-piece built for effective bubble drainage and durability
• Made from recycled plastic waste and plant-based bioplastic, produced in a solar-powered facility
• Lead-free brass components designed for long-term recyclability and strength
• Each sale supports removal of 5 kg of plastic waste from waterways in cooperation with Plastic Bank
• Includes octopus and hose

Technical Features
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