The Apeks MTX-R Octopus has all the features as with the main regulator Apeks MTX-R system. It is simple to use 2nd stage with no dive adjustment controls and a reduced chance of free flow.

It comes with a double swivel hose for greater freedom of movement and comfort, and a patented heat exchanger surrounds the valve mechanism, dissipating the cold caused by gas expansion while drawing in the warmth of the ambient water.

It was developed in accordance with the United States Navy Experimental Dive Unit extreme cold water test, and have been tested for use to 60 metres in cold water.