This octopus is based upon the XTX40 second stage.
  It includes left / right reversibility, cold-water capability and the performance you
would expect from an Apeks pneumatically balanced valve.
 Diver-adjustable venturi control.
 The unit has a high visibility yellow front cover, yellow accent pieces and a 36” yellow hose.
REGULATORS | 19
Comes standard with small exhaust tee.
 Suitable for cold water use (below 10c / 50F).