Simple to use with no dive adjustment controls and reduced chance of free flow occurrence, pre-settable cracking effort or venturi control by an Apeks approved qualified technician. The Apeks MTX-R Octopus is a high performance pneumatically balanced lever operated poppet valve regulator, with large, diver friendly self-flushing controllable purge button and front cover with over-molded elastomer incorporates a formed chrome plated brass plate which improves durability of the second stage. Large protective elastomer bumpers on the side and on the top to protect the second stage from impacts and scratches in the most vulnerable places. Reversible second stage for either a left-or-right-hand gas supply configuration. A heat exchanger (patented) which surrounds the valve mechanism, dissipates the cold caused by gas expansion while drawing in the warmth of the ambient water. Regulator comes standard with a silicone mouthpiece. The unit has a high visibility yellow front cover, yellow accent pieces and a 36" (91.44cm) braided flex yellow hose and small exhaust tee.