Abyss has long been a staple name in high performance. The evolved design of the Abyss octopus adds more metal on front cover and hose protector to achieve even further dependability in the most difficult diving conditions. All metal technology second stages have superior performance over plastic second stages, especially in cold water, due to the high thermal conductivity that limits the freezing effect. Additional benefits are the improved durability, the longer working life and less dry mouth from breathing compressed air. This all metal octopus is made of nickel and chrome plated marine grade brass. All Mares second stages are a reliable downstream valve design and offer the unique patented Vortex Assisted Design (VAD) system. The air bypass tube conveys air to the mouthpiece creating a swirling vortex with a low pressure area in the center that keeps the diaphragm down during inhalation, for very sensitive and easy breathing at all depths. The second stage cover features the new mesh-grid system for water inflow and outflow, which provides a further performance improvement. The patented mesh design of the second stage cover reduces the pressure of water flowing onto the regulators diaphragm and minimizes free-flow. Even in a strong current it eliminates the need for a knob to de-tune your air delivery system- advance technology through basic physics. Mares Abyss octopus comes with a limited lifetime warranty. Supplied by Authorised Mares Dealers BlueWaterSports with 100cm Hose and Hose Protector.