This is the Aqua Helix Pro Scuba Diving Octopus  

  
Features:

• 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

Second Stage

• 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

The Helix Pro octopus provides the same great performance as the Helix Pro primary second stage.