The Apeks XTX50 Octo is a premium alternate air source designed to deliver high-performance breathing and diver- controlled adjustability in any environment. Based on the renowned XTX50 second stage, this octo provides primary-level performance, making it a dependable backup for demanding dives.

Engineered with a pneumatically balanced second stage, the XTX50 Octo ensures smooth, effortless airflow at all depths. Its breathing effort adjustment knob and Venturi control lever allow divers to fine-tune performance, while also preventing freeflow when not in use. Built for versatility, the XTX50 features left or right-handed hose configuration, allowing easy customization to match your setup. Combined with Apeks’ proven cold-water capability, this octo performs reliably in both recreational and advanced diving conditions.