The Octopus MG is specially designed for the most demanding divers. It is a pneumatically balanced valve designed made with the Cressi's patented elliptical membrane diaphragm and patented low-friction lever. It features a Deflector Dive-Predive without metal parts to personalize the Venturi effect. The Octopus air delivery system without injector has an internal heat exchange, cam-lock system to open the case and a body in noise-absorbent techno Polymer. Removable techno Polymer deflector and removable mechanical parts. The hose is an extremely light and flexible weighing only 5.4 oz. (153 g) with the regulator coming in at 6.42 oz (182 g). The Octopus is certified to CE standard Annex B EN 250:2014 for cold water. The hose and the purge cover are in bright yellow color for easy identification in an out-of-air-emergency.