Aqualung Octopus Core Regulator — This baby packs all the essential features of Aqualung's Core second stage regulator. Thanks to its heat exchanger, it's perfect for use in chilly waters. The bright yellow hose and second stage cover are super easy to spot, even in murky conditions.

Features:

• Balanced pneumatic second stage for effortless and smooth breathing
• Comfortable, intuitive venturi adjustment prevents free flow on the surface while allowing you to take full advantage of the regulator's features at depth
• Compatible with nitrox up to 40% O2
• The heat sink surrounding the valve mechanism efficiently transfers and dissipates the cold temperature during gas flow while inhaling

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