The Omni Swivel Gas Switch Block allows a diver to change between two separate air tanks without having to remove their full face mask. The knob turns a full 180 degrees ensuring that there is no accidental switching during the dive. The knob pointing to the first position signifies that the air source closest to the outlet is in use.

In case of a second stage failure, a diver can turn the flow off to mask and switch to an alternative regulator. This shut-off position also prevents a cross blending of gases during a switch over. 3/8"- 24 Female or Adapted 9/16"-18 Male Inlet Ports to 1 Port 3/8"- 24 Female Outlet Right Hand