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
The Delta 5 is the next step in a long line of remarkably reliable, durable and smoothly breathing regulators to carry that name. Sure, we’ve given it an updated look, but that’s not all. Like the deltas before it the 5 comes standard with our patented Dynamic Adjustment Technology that, once set by the diver, provides consistent airflow at any depth. It also comes standard with a dive/pre-dive switch and a super comfortable orthodontic mouth piece. This latest edition though has a new, and updated, all metal pneumatic valve providing super smooth breathing performance in any condition.