Apeks XL4 Ocea OctopusApeks XL4 Ocea is a high performance pneumatically balanced Octopus with lever operated poppet valve design. Large, over molded self flushing and controllable purge button. Ergonomic Venturi lever is easy to use and locate. Flexible nylon braided hose has better cold water performance than a traditional rubber hose. Standard metallic hose connection for interchangeability. Comfo bite mouthpiece has a unique bridge that fits across the upper palate and