APEKS XL4+ Octopus – Lightweight Emergency Air Source for Travel and Technical Diving Strengthen your dive safety setup with the XL4+ Octopus, engineered to deliver smooth and dependable alternate air performance in a compact, travel-friendly design. Built for quick deployment and controlled breathing, this high-visibility octopus ensures reliable emergency air sharing when it matters most. Built by Apeks and trusted by recreational and advanced divers worldwide, the XL4+ Octopus combines lightweight construction with rugged durability for consistent performance in both warm and cold water environments. At Aquatic Sports, we recommend this alternate air source for divers seeking a streamlined, high-performance backup regulator that integrates seamlessly with compatible Apeks systems. Why Divers Choose the XL4+ Octopus Lightweight and compact design ideal for travel and streamlined rigs Smooth and consistent alternate air delivery High-visibility yellow and black front cover for rapid identification Durable materials built for long-term marine reliability Compatible with Apeks XL4+ and performance regulator systems Key Features Balanced second stage for stable emergency airflow Ergonomic purge button for easy operation under stress Corrosion-resistant components for saltwater and freshwater use Flexible hose routing for clean, streamlined configuration Designed for recreational and advanced diving applications Perfect For Recreational divers completing a dependable regulator setup Travel divers seeking lightweight backup equipment Cold water divers requiring reliable alternate air support Divers upgrading to a compact, high-visibility octopus Mission-Critical Confidence The XL4+ Octopus delivers reliable alternate air performance, compact durability, and trusted Apeks engineering, giving you critical backup breathing support and added confidence on every dive.