You cannot breathe directly out of a scuba tank because of the high pressure. A regulator reduces pressure to safe a level that can be inhaled by the diver. A diving regulator has two parts: the First Stage reduces the tank pressure and connects it to the Second Stage which contains the mouthpiece for breathing
Comprised of precision-machined components and extensive research and design, the EOS regulator has achieved an incredible feat...lifelike breathing. Oceanic`s gifted team of design engineers has included effortless breathing, inhalation effort adjustments, and comfortable second stage swivels and orthodontic mouthpieces into a regulator that you can hold in the palm of your hand. This is far more than just another regulator in the eyes of the Oceanic team, this is a dream come true.
This item DOES COME with a HOSE
Pneumatically balanced second stage with virtually no breathing effort
Stainless steel inline swivel for reduced jaw fatigue & comfort
Patented Dynamic Adjustment automatically maintains inhalation effort throughout the dive