Left hand H adapter attached to right hand modular valve.
Clean for Pre-Blended Nitrox up to 40% Oxygen
The H valve allows the diver to have a redundant regulator with out having a set of doubles. The H valve attaches to a modular valve on a single cylinder. They come right or left handed. The valve will work with DIN or Yoke regulator connections. They are 230 BAR rated