Atomic Aquatics M1 Regulator First StageThe Atomic Aquatics M1 Regulator First Stage is a sealed first stage designed for demanding scuba diving and underwater exploration. The sealed design helps protect internal components from contaminants, delivering steady air to your regulator system in a range of diving conditions. As a core part of scuba gear, it is built to perform reliably under pressure and resist common marine contaminants. Construction uses state of the art metals for extreme