This is an Atomic Octopus SS1, which is integrated with an inflator. Instead of hanging a regular octopus, the inflator acts as an octopus in an emergency, allowing for lighter and simpler equipment. This is recommended for divers who don't use or have never used an octopus. Atomic regulators boast the world's best breathing comfort. This SS1 is also made by Atomic, so you can be assured of its quality. It has been used about 10 times. It was overhauled just before being removed, so you can use it with confidence. The inflator hose is an Aqualung brand hose that is included. Actually, the Atomic SS1 cannot be attached to an Aqualung BCD. This equipment is a custom-made item specially created to fit the Aqualung inflator hose, so it is not available anywhere else. Please take this opportunity to purchase it. * This item is scheduled to be removed from sale in mid-November, so please purchase it as soon as possible.