Scubapro Air 2 Alternate Inflation Regulator

Air 2, Combination Octopus/Inflator Regulator:, Increased Safety In-Out-of-Air Emergencies, Second Stage Regulator & Balanced Inflator In-Single, Compact Housing, Lightweight, Streamline, Eliminates Backup-Regulator (Octopus), Balanced Power Inflator Valve