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 MK17 is a high performance, balanced diaphragm first stage engineered specifically for cold water and harsh environments. The MK17 is a high performance,...
The MK25 is Scubapro's flagship first stage that uses an extremely high performing balanced piston design to offer very fast responsiveness and an incredible flow rate regardless of depth of cylinder pressure. The MK25 is Scubapro's flagship first...