The Airsource 3 combines a high-performance second stage with a power inflator. By eliminating the need for a traditional octopus, the diver can streamline his entire system. In addition, unlike a traditional octopus that can drag in the sand or damage coral, you'll take comfort knowing that the Airsource 3 is right in front of you ready to deliver life saving air in a moment's notice. Several new features have been added to this latest version of Airsource to make it the most desirable of all breathable inflators.