Aqua Lung Pro Helix Octopus Regulator

The Helix Pro octopus provides the same great performance as the Helix Pro primary second stage. What's in the box Helix Pro Octopus Second Stage Long Yellow Hose User Guide Specs Type of second stage Pneumatically balanced Controls Venturi switch Breathing resistance Preset Mouthpieces 2ea. - A Comfo-Bite installed and a standard with bite wings in the box Lip shield Yes Heat Exchanger for freezing resistance Standard on all models 2nd Stage Weight 175 g 2nd Stage Weight Supreme model178 g Hose length 730 mm Overall work of breathing (WOB) scores Avg. 0.80 joules/liter Nitrox compatible Yes to 40% O2 when new out of the box Features Pneumatically-balanced resulting in smooth and easy breathing Heat exchanger (patented) which surrounds the valve mechanism dissipates the cold caused by gas expansion while drawing in the warmth of the ambient water Easy-to-grip venturi lever prevents unwanted freeflow at the surface while giving a performance boost at depth Includes 1m yellow hose and yellow front cover making it easy to locate in an emergency